struts
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liomao：
我的方法是加一个过滤器，好像也没问题。http://go2si ...
google appengine for java 乱码解决方案 -
spiritfrog：
还是看官方的吧，你的例子在flash10下不能跑，报错：err ...
fancyupload2.0实现多文件上传-jsp -
struts：
noelo 写道
导入到eclipse中，部署到tomcat下 ...
fancyupload2.0实现多文件上传-jsp -
noelo：
放到firefox当中去调试却发是mootools-trunk ...
fancyupload2.0实现多文件上传-jsp -
noelo：
导入到eclipse中，部署到tomcat下，怎么点击，就跳出 ...
fancyupload2.0实现多文件上传-jsp
google appengine支持java.闲来无事。就体验了一下google appengine.
简单的做了一个blog ,希望大家光临一下。准备慢慢完善。 只是简单的实现了一些功能。
里面用到了freemarker taglib ,自己简单把servlet封装了一个。
地址： http://pythonfn.appspot.com/index.jsp
USERINFO那个前面要加包名
被搞死了，原来hib的项目到这很多都不能用
1,首先修改UserInfo主键的注释为
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
2，删除web-inf下appengine-generated
3，查询语句写错了。应该是select from fank.table.create.UserInfo u
我现在在公司。没有那个博客的代码。如果需要的话。晚上传给你qq:256484
他会在项目的web-inf下生成appengine-generated目录。里面存的数据信息。
使用jpa需要把meta-inf下的xml文件换成persistence.xml
谢谢帮助...我还是自己先慢慢测试一下算了!
他会在项目的web-inf下生成appengine-generated目录。里面存的数据信息。
使用jpa需要把meta-inf下的xml文件换成persistence.xml
你写好实现类加上注释。他会自动根据annotation生成数据库表的
http://code.google.com/intl/zh-CN/appengine/docs/java/gettingstarted/
我看了下JPA的注解..但是都没有看到那个注解和自动建库,建表有关系.>!!!
ls的ls，lz是java 不是python。 早八年可没有这个
你写好实现类加上注释。他会自动根据annotation生成数据库表的
http://code.google.com/intl/zh-CN/appengine/docs/java/gettingstarted/
可以放广告。。呵呵。
我也是后来注册的。不过隔了一天。就开通了。慢慢等一下吧。
功能是简单了点。。。。
楼主用啥做的？
我准备用Spring+JPA。
servlet那层。自己仿struts2框架。利用filter简单的封装了一个。适合自己就可以了。view层是用的freemarker 持久层用的jdo 感觉不太好用。。呵呵。
功能是简单了点。。。。
楼主用啥做的？
我准备用Spring+JPA。
我还在研究他的JPA呢！
我在研究spring mvc呢，这玩意可以用spring
之前注册的是python的，你需要重新申请就可以了。
简单的做了一个blog ,希望大家光临一下。准备慢慢完善。 只是简单的实现了一些功能。
里面用到了freemarker taglib ,自己简单把servlet封装了一个。
地址： http://pythonfn.appspot.com/index.jsp
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38 楼
popo123
2009-05-31
fc6029585 写道
楼主..麻烦你帮我看一下.我找了一天了也不知道哪出了问题..
如果我将自带的jdoexample copy到eclipse中就可以直接运行了..
保存这个类..eclipse 控制台打印
请问是不是意思就是 在gae的本地数据库dataNuclus就已经创建了这个类对应的表?
然后我写了个插入数据库的类
保存的时候打印
我将 persistence.xml(google jpa 说明的xml直接copy过来的) copy 到了 META-INFO 下(和jdoconfig.xml 同一个目录)
写了个main方法 和servlet 运行
EntityManager em=EMF.getEntiryManager() ;
Query query=em.createQuery("select u from UserInfo u");
List list=(List)query.getResultList();
System.out.println(list.size()+" size");
for(int i=0;i<list.size();i++){
UserInfo user=(UserInfo)list.get(i);
System.out.println(user.getUserName()+" </br>");
}
但是都要报错
我的测试jpa项目附件发上来了
如果楼主有空请帮我看看..或者是把您的 简易博客 发给我参考下..哈哈
如果我将自带的jdoexample copy到eclipse中就可以直接运行了..
@Entity
public class UserInfo {
@Id
@GeneratedValue(strategy = GenerationType.TABLE)
private Long id;
private String userName;
private String password;
@Transient
private String phone;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
保存这个类..eclipse 控制台打印
DataNucleus Enhancer (version 1.1.0) : Enhancement of classes DataNucleus Enhancer completed with success for 1 classes. Timings : input=125 ms, enhance=47 ms, total=172 ms. Consult the log for full details
请问是不是意思就是 在gae的本地数据库dataNuclus就已经创建了这个类对应的表?
然后我写了个插入数据库的类
public class InsertDB {
public static void main(String[] args) {
EntityManager em=EMF.getEntiryManager();
for(int i=4;i<9;i++){
UserInfo user1=new UserInfo();
user1.setUserName("user"+i+i);
user1.setPassword(i+i+i+i+i+i+i+i+"");
user1.setPhone(i+i+"");
em.merge(user1);
}
}
}
保存的时候打印
DataNucleus Enhancer (version 1.1.0) : Enhancement of classes DataNucleus Enhancer completed with success for 0 classes. Timings : input=32 ms, enhance=0 ms, total=32 ms. Consult the log for full details DataNucleus Enhancer completed and no classes were enhanced. Consult the log for full details
我将 persistence.xml(google jpa 说明的xml直接copy过来的) copy 到了 META-INFO 下(和jdoconfig.xml 同一个目录)
写了个main方法 和servlet 运行
EntityManager em=EMF.getEntiryManager() ;
Query query=em.createQuery("select u from UserInfo u");
List list=(List)query.getResultList();
System.out.println(list.size()+" size");
for(int i=0;i<list.size();i++){
UserInfo user=(UserInfo)list.get(i);
System.out.println(user.getUserName()+" </br>");
}
但是都要报错
HTTP ERROR: 500 UserInfo RequestURI=/eat Caused by: javax.persistence.PersistenceException: UserInfo at org.datanucleus.jpa.NucleusJPAHelper.getJPAExceptionForNucleusException(NucleusJPAHelper.java:276) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:169) at fank.eatServlet.doGet(eatServlet.java:20) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:306) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Caused by: org.datanucleus.exceptions.ClassNotResolvedException: UserInfo at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java:194) at org.datanucleus.query.compiler.JavaQueryCompiler.compileFrom(JavaQueryCompiler.java:209) at org.datanucleus.query.compiler.JPQLCompiler.compile(JPQLCompiler.java:72) at org.datanucleus.store.query.AbstractJPQLQuery.compileInternal(AbstractJPQLQuery.java:242) at org.datanucleus.store.query.Query.executeQuery(Query.java:1430) at org.datanucleus.store.query.Query.executeWithMap(Query.java:1367) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:153) ... 24 more Caused by: UserInfo org.datanucleus.exceptions.ClassNotResolvedException: UserInfo at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java:194) at org.datanucleus.query.compiler.JavaQueryCompiler.compileFrom(JavaQueryCompiler.java:209) at org.datanucleus.query.compiler.JPQLCompiler.compile(JPQLCompiler.java:72) at org.datanucleus.store.query.AbstractJPQLQuery.compileInternal(AbstractJPQLQuery.java:242) at org.datanucleus.store.query.Query.executeQuery(Query.java:1430) at org.datanucleus.store.query.Query.executeWithMap(Query.java:1367) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:153) at fank.eatServlet.doGet(eatServlet.java:20) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:306) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Powered by Jetty://
我的测试jpa项目附件发上来了
如果楼主有空请帮我看看..或者是把您的 简易博客 发给我参考下..哈哈
USERINFO那个前面要加包名
被搞死了，原来hib的项目到这很多都不能用
37 楼
fc6029585
2009-04-16
谢谢!!!struts!!
36 楼
struts
2009-04-16
fc6029585 写道
楼主..麻烦你帮我看一下.我找了一天了也不知道哪出了问题..
如果我将自带的jdoexample copy到eclipse中就可以直接运行了..
保存这个类..eclipse 控制台打印
请问是不是意思就是 在gae的本地数据库dataNuclus就已经创建了这个类对应的表?
然后我写了个插入数据库的类
保存的时候打印
我将 persistence.xml(google jpa 说明的xml直接copy过来的) copy 到了 META-INFO 下(和jdoconfig.xml 同一个目录)
写了个main方法 和servlet 运行
EntityManager em=EMF.getEntiryManager() ;
Query query=em.createQuery("select u from UserInfo u");
List list=(List)query.getResultList();
System.out.println(list.size()+" size");
for(int i=0;i<list.size();i++){
UserInfo user=(UserInfo)list.get(i);
System.out.println(user.getUserName()+" </br>");
}
但是都要报错
我的测试jpa项目附件发上来了
如果楼主有空请帮我看看..或者是把您的 简易博客 发给我参考下..哈哈
如果我将自带的jdoexample copy到eclipse中就可以直接运行了..
@Entity
public class UserInfo {
@Id
@GeneratedValue(strategy = GenerationType.TABLE)
private Long id;
private String userName;
private String password;
@Transient
private String phone;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
保存这个类..eclipse 控制台打印
DataNucleus Enhancer (version 1.1.0) : Enhancement of classes DataNucleus Enhancer completed with success for 1 classes. Timings : input=125 ms, enhance=47 ms, total=172 ms. Consult the log for full details
请问是不是意思就是 在gae的本地数据库dataNuclus就已经创建了这个类对应的表?
然后我写了个插入数据库的类
public class InsertDB {
public static void main(String[] args) {
EntityManager em=EMF.getEntiryManager();
for(int i=4;i<9;i++){
UserInfo user1=new UserInfo();
user1.setUserName("user"+i+i);
user1.setPassword(i+i+i+i+i+i+i+i+"");
user1.setPhone(i+i+"");
em.merge(user1);
}
}
}
保存的时候打印
DataNucleus Enhancer (version 1.1.0) : Enhancement of classes DataNucleus Enhancer completed with success for 0 classes. Timings : input=32 ms, enhance=0 ms, total=32 ms. Consult the log for full details DataNucleus Enhancer completed and no classes were enhanced. Consult the log for full details
我将 persistence.xml(google jpa 说明的xml直接copy过来的) copy 到了 META-INFO 下(和jdoconfig.xml 同一个目录)
写了个main方法 和servlet 运行
EntityManager em=EMF.getEntiryManager() ;
Query query=em.createQuery("select u from UserInfo u");
List list=(List)query.getResultList();
System.out.println(list.size()+" size");
for(int i=0;i<list.size();i++){
UserInfo user=(UserInfo)list.get(i);
System.out.println(user.getUserName()+" </br>");
}
但是都要报错
HTTP ERROR: 500 UserInfo RequestURI=/eat Caused by: javax.persistence.PersistenceException: UserInfo at org.datanucleus.jpa.NucleusJPAHelper.getJPAExceptionForNucleusException(NucleusJPAHelper.java:276) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:169) at fank.eatServlet.doGet(eatServlet.java:20) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:306) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Caused by: org.datanucleus.exceptions.ClassNotResolvedException: UserInfo at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java:194) at org.datanucleus.query.compiler.JavaQueryCompiler.compileFrom(JavaQueryCompiler.java:209) at org.datanucleus.query.compiler.JPQLCompiler.compile(JPQLCompiler.java:72) at org.datanucleus.store.query.AbstractJPQLQuery.compileInternal(AbstractJPQLQuery.java:242) at org.datanucleus.store.query.Query.executeQuery(Query.java:1430) at org.datanucleus.store.query.Query.executeWithMap(Query.java:1367) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:153) ... 24 more Caused by: UserInfo org.datanucleus.exceptions.ClassNotResolvedException: UserInfo at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java:194) at org.datanucleus.query.compiler.JavaQueryCompiler.compileFrom(JavaQueryCompiler.java:209) at org.datanucleus.query.compiler.JPQLCompiler.compile(JPQLCompiler.java:72) at org.datanucleus.store.query.AbstractJPQLQuery.compileInternal(AbstractJPQLQuery.java:242) at org.datanucleus.store.query.Query.executeQuery(Query.java:1430) at org.datanucleus.store.query.Query.executeWithMap(Query.java:1367) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:153) at fank.eatServlet.doGet(eatServlet.java:20) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:306) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Powered by Jetty://
我的测试jpa项目附件发上来了
如果楼主有空请帮我看看..或者是把您的 简易博客 发给我参考下..哈哈
1,首先修改UserInfo主键的注释为
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
2，删除web-inf下appengine-generated
3，查询语句写错了。应该是select from fank.table.create.UserInfo u
我现在在公司。没有那个博客的代码。如果需要的话。晚上传给你qq:256484
35 楼
fc6029585
2009-04-16
楼主..麻烦你帮我看一下.我找了一天了也不知道哪出了问题..
如果我将自带的jdoexample copy到eclipse中就可以直接运行了..
保存这个类..eclipse 控制台打印
请问是不是意思就是 在gae的本地数据库dataNuclus就已经创建了这个类对应的表?
然后我写了个插入数据库的类
保存的时候打印
我将 persistence.xml(google jpa 说明的xml直接copy过来的) copy 到了 META-INFO 下(和jdoconfig.xml 同一个目录)
写了个main方法 和servlet 运行
EntityManager em=EMF.getEntiryManager() ;
Query query=em.createQuery("select u from UserInfo u");
List list=(List)query.getResultList();
System.out.println(list.size()+" size");
for(int i=0;i<list.size();i++){
UserInfo user=(UserInfo)list.get(i);
System.out.println(user.getUserName()+" </br>");
}
但是都要报错
我的测试jpa项目附件发上来了
如果楼主有空请帮我看看..或者是把您的 简易博客 发给我参考下..哈哈
如果我将自带的jdoexample copy到eclipse中就可以直接运行了..
@Entity
public class UserInfo {
@Id
@GeneratedValue(strategy = GenerationType.TABLE)
private Long id;
private String userName;
private String password;
@Transient
private String phone;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
保存这个类..eclipse 控制台打印
DataNucleus Enhancer (version 1.1.0) : Enhancement of classes DataNucleus Enhancer completed with success for 1 classes. Timings : input=125 ms, enhance=47 ms, total=172 ms. Consult the log for full details
请问是不是意思就是 在gae的本地数据库dataNuclus就已经创建了这个类对应的表?
然后我写了个插入数据库的类
public class InsertDB {
public static void main(String[] args) {
EntityManager em=EMF.getEntiryManager();
for(int i=4;i<9;i++){
UserInfo user1=new UserInfo();
user1.setUserName("user"+i+i);
user1.setPassword(i+i+i+i+i+i+i+i+"");
user1.setPhone(i+i+"");
em.merge(user1);
}
}
}
保存的时候打印
DataNucleus Enhancer (version 1.1.0) : Enhancement of classes DataNucleus Enhancer completed with success for 0 classes. Timings : input=32 ms, enhance=0 ms, total=32 ms. Consult the log for full details DataNucleus Enhancer completed and no classes were enhanced. Consult the log for full details
我将 persistence.xml(google jpa 说明的xml直接copy过来的) copy 到了 META-INFO 下(和jdoconfig.xml 同一个目录)
写了个main方法 和servlet 运行
EntityManager em=EMF.getEntiryManager() ;
Query query=em.createQuery("select u from UserInfo u");
List list=(List)query.getResultList();
System.out.println(list.size()+" size");
for(int i=0;i<list.size();i++){
UserInfo user=(UserInfo)list.get(i);
System.out.println(user.getUserName()+" </br>");
}
但是都要报错
HTTP ERROR: 500 UserInfo RequestURI=/eat Caused by: javax.persistence.PersistenceException: UserInfo at org.datanucleus.jpa.NucleusJPAHelper.getJPAExceptionForNucleusException(NucleusJPAHelper.java:276) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:169) at fank.eatServlet.doGet(eatServlet.java:20) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:306) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Caused by: org.datanucleus.exceptions.ClassNotResolvedException: UserInfo at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java:194) at org.datanucleus.query.compiler.JavaQueryCompiler.compileFrom(JavaQueryCompiler.java:209) at org.datanucleus.query.compiler.JPQLCompiler.compile(JPQLCompiler.java:72) at org.datanucleus.store.query.AbstractJPQLQuery.compileInternal(AbstractJPQLQuery.java:242) at org.datanucleus.store.query.Query.executeQuery(Query.java:1430) at org.datanucleus.store.query.Query.executeWithMap(Query.java:1367) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:153) ... 24 more Caused by: UserInfo org.datanucleus.exceptions.ClassNotResolvedException: UserInfo at org.datanucleus.util.Imports.resolveClassDeclaration(Imports.java:194) at org.datanucleus.query.compiler.JavaQueryCompiler.compileFrom(JavaQueryCompiler.java:209) at org.datanucleus.query.compiler.JPQLCompiler.compile(JPQLCompiler.java:72) at org.datanucleus.store.query.AbstractJPQLQuery.compileInternal(AbstractJPQLQuery.java:242) at org.datanucleus.store.query.Query.executeQuery(Query.java:1430) at org.datanucleus.store.query.Query.executeWithMap(Query.java:1367) at org.datanucleus.jpa.JPAQuery.getResultList(JPAQuery.java:153) at fank.eatServlet.doGet(eatServlet.java:20) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:306) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Powered by Jetty://
我的测试jpa项目附件发上来了
如果楼主有空请帮我看看..或者是把您的 简易博客 发给我参考下..哈哈
34 楼
fc6029585
2009-04-15
struts 写道
fc6029585 写道
我试着写了个JPA注解类,,
本地 run as gae application 的时候报错..
大家帮忙指点下
Missing required argument 'module[s]'
Google Web Toolkit 1.6.4
HostedMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers count] module[s]
where
-noserver Prevents the embedded web server from running
-port Specifies the TCP port for the embedded web server (defaults to 8888)
-whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated)
-blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated)
-logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL
-gen The directory into which generated files will be written for review
-style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF)
-ea Debugging: causes the compiled output to check assert statements.
-server Specifies a different embedded web server to run (must implement ServletContainerLauncher)
-startupUrl Automatically launches the specified URL
-war The war directory to write output files into (defaults to war)
-extra The directory into which extra, non-deployed files will be written
-workDir The compiler work directory (must be writeable; defaults to a system temp dir)
-localWorkers Specifies the number of local workers to use when compiling permutations
and
module[s] Specifies the name(s) of the module(s) to host
本地 run as gae application 的时候报错..
大家帮忙指点下
Missing required argument 'module[s]'
Google Web Toolkit 1.6.4
HostedMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers count] module[s]
where
-noserver Prevents the embedded web server from running
-port Specifies the TCP port for the embedded web server (defaults to 8888)
-whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated)
-blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated)
-logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL
-gen The directory into which generated files will be written for review
-style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF)
-ea Debugging: causes the compiled output to check assert statements.
-server Specifies a different embedded web server to run (must implement ServletContainerLauncher)
-startupUrl Automatically launches the specified URL
-war The war directory to write output files into (defaults to war)
-extra The directory into which extra, non-deployed files will be written
-workDir The compiler work directory (must be writeable; defaults to a system temp dir)
-localWorkers Specifies the number of local workers to use when compiling permutations
and
module[s] Specifies the name(s) of the module(s) to host
他会在项目的web-inf下生成appengine-generated目录。里面存的数据信息。
使用jpa需要把meta-inf下的xml文件换成persistence.xml
谢谢帮助...我还是自己先慢慢测试一下算了!
33 楼
struts
2009-04-15
fc6029585 写道
我试着写了个JPA注解类,,
本地 run as gae application 的时候报错..
大家帮忙指点下
Missing required argument 'module[s]'
Google Web Toolkit 1.6.4
HostedMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers count] module[s]
where
-noserver Prevents the embedded web server from running
-port Specifies the TCP port for the embedded web server (defaults to 8888)
-whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated)
-blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated)
-logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL
-gen The directory into which generated files will be written for review
-style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF)
-ea Debugging: causes the compiled output to check assert statements.
-server Specifies a different embedded web server to run (must implement ServletContainerLauncher)
-startupUrl Automatically launches the specified URL
-war The war directory to write output files into (defaults to war)
-extra The directory into which extra, non-deployed files will be written
-workDir The compiler work directory (must be writeable; defaults to a system temp dir)
-localWorkers Specifies the number of local workers to use when compiling permutations
and
module[s] Specifies the name(s) of the module(s) to host
本地 run as gae application 的时候报错..
大家帮忙指点下
Missing required argument 'module[s]'
Google Web Toolkit 1.6.4
HostedMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers count] module[s]
where
-noserver Prevents the embedded web server from running
-port Specifies the TCP port for the embedded web server (defaults to 8888)
-whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated)
-blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated)
-logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL
-gen The directory into which generated files will be written for review
-style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF)
-ea Debugging: causes the compiled output to check assert statements.
-server Specifies a different embedded web server to run (must implement ServletContainerLauncher)
-startupUrl Automatically launches the specified URL
-war The war directory to write output files into (defaults to war)
-extra The directory into which extra, non-deployed files will be written
-workDir The compiler work directory (must be writeable; defaults to a system temp dir)
-localWorkers Specifies the number of local workers to use when compiling permutations
and
module[s] Specifies the name(s) of the module(s) to host
他会在项目的web-inf下生成appengine-generated目录。里面存的数据信息。
使用jpa需要把meta-inf下的xml文件换成persistence.xml
32 楼
fc6029585
2009-04-15
我试着写了个JPA注解类,,
本地 run as gae application 的时候报错..
大家帮忙指点下
Missing required argument 'module[s]'
Google Web Toolkit 1.6.4
HostedMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers count] module[s]
where
-noserver Prevents the embedded web server from running
-port Specifies the TCP port for the embedded web server (defaults to 8888)
-whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated)
-blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated)
-logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL
-gen The directory into which generated files will be written for review
-style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF)
-ea Debugging: causes the compiled output to check assert statements.
-server Specifies a different embedded web server to run (must implement ServletContainerLauncher)
-startupUrl Automatically launches the specified URL
-war The war directory to write output files into (defaults to war)
-extra The directory into which extra, non-deployed files will be written
-workDir The compiler work directory (must be writeable; defaults to a system temp dir)
-localWorkers Specifies the number of local workers to use when compiling permutations
and
module[s] Specifies the name(s) of the module(s) to host
本地 run as gae application 的时候报错..
大家帮忙指点下
Missing required argument 'module[s]'
Google Web Toolkit 1.6.4
HostedMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers count] module[s]
where
-noserver Prevents the embedded web server from running
-port Specifies the TCP port for the embedded web server (defaults to 8888)
-whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated)
-blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated)
-logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL
-gen The directory into which generated files will be written for review
-style Script output style: OBF[USCATED], PRETTY, or DETAILED (defaults to OBF)
-ea Debugging: causes the compiled output to check assert statements.
-server Specifies a different embedded web server to run (must implement ServletContainerLauncher)
-startupUrl Automatically launches the specified URL
-war The war directory to write output files into (defaults to war)
-extra The directory into which extra, non-deployed files will be written
-workDir The compiler work directory (must be writeable; defaults to a system temp dir)
-localWorkers Specifies the number of local workers to use when compiling permutations
and
module[s] Specifies the name(s) of the module(s) to host
31 楼
fc6029585
2009-04-15
struts 写道
fc6029585 写道
请教一下..
gae有关数据库的建立(数据库建立,表的创建)?是怎么弄啊??
有没有相关的地址啊?
我google了很久也没找到方法!!
gae有关数据库的建立(数据库建立,表的创建)?是怎么弄啊??
有没有相关的地址啊?
我google了很久也没找到方法!!
你写好实现类加上注释。他会自动根据annotation生成数据库表的
http://code.google.com/intl/zh-CN/appengine/docs/java/gettingstarted/
我看了下JPA的注解..但是都没有看到那个注解和自动建库,建表有关系.>!!!
30 楼
lw223
2009-04-14
hateeyes 写道
ls的ls，lz是java 不是python。 早八年可没有这个
29 楼
hateeyes
2009-04-14
28 楼
lupingui
2009-04-14
[url]http://www.xiangsou.net.cn/[url]
最近学习lucene,做了一个项目外包搜索网站。有兴趣的兄弟可以去看看。。。
最近学习lucene,做了一个项目外包搜索网站。有兴趣的兄弟可以去看看。。。
27 楼
struts
2009-04-14
fc6029585 写道
请教一下..
gae有关数据库的建立(数据库建立,表的创建)?是怎么弄啊??
有没有相关的地址啊?
我google了很久也没找到方法!!
gae有关数据库的建立(数据库建立,表的创建)?是怎么弄啊??
有没有相关的地址啊?
我google了很久也没找到方法!!
你写好实现类加上注释。他会自动根据annotation生成数据库表的
http://code.google.com/intl/zh-CN/appengine/docs/java/gettingstarted/
26 楼
fc6029585
2009-04-14
请教一下..
gae有关数据库的建立(数据库建立,表的创建)?是怎么弄啊??
有没有相关的地址啊?
我google了很久也没找到方法!!
gae有关数据库的建立(数据库建立,表的创建)?是怎么弄啊??
有没有相关的地址啊?
我google了很久也没找到方法!!
25 楼
struts
2009-04-14
blueion 写道
上面能不能放广告？
可以放广告。。呵呵。
24 楼
struts
2009-04-14
chenlb 写道
注册了 gae ,但不是在10000个之前, 发布不了 java
我也是后来注册的。不过隔了一天。就开通了。慢慢等一下吧。
23 楼
struts
2009-04-14
ywbanm 写道
struts 写道
google appengine支持java.闲来无事。就体验了一下google appengine.
简单的做了一个blog ,希望大家光临一下。准备慢慢完善。 只是简单的实现了一些功能。
里面用到了freemarker taglib ,自己简单把servlet封装了一个。
地址： http://pythonfn.appspot.com/index.jsp
简单的做了一个blog ,希望大家光临一下。准备慢慢完善。 只是简单的实现了一些功能。
里面用到了freemarker taglib ,自己简单把servlet封装了一个。
地址： http://pythonfn.appspot.com/index.jsp
功能是简单了点。。。。
楼主用啥做的？
我准备用Spring+JPA。
servlet那层。自己仿struts2框架。利用filter简单的封装了一个。适合自己就可以了。view层是用的freemarker 持久层用的jdo 感觉不太好用。。呵呵。
22 楼
lw223
2009-04-14
天机老人 写道
ywbanm 写道
struts 写道
google appengine支持java.闲来无事。就体验了一下google appengine.
简单的做了一个blog ,希望大家光临一下。准备慢慢完善。 只是简单的实现了一些功能。
里面用到了freemarker taglib ,自己简单把servlet封装了一个。
地址： http://pythonfn.appspot.com/index.jsp
简单的做了一个blog ,希望大家光临一下。准备慢慢完善。 只是简单的实现了一些功能。
里面用到了freemarker taglib ,自己简单把servlet封装了一个。
地址： http://pythonfn.appspot.com/index.jsp
功能是简单了点。。。。
楼主用啥做的？
我准备用Spring+JPA。
我还在研究他的JPA呢！
我在研究spring mvc呢，这玩意可以用spring
21 楼
lw223
2009-04-14
chenlb 写道
注册了 gae ,但不是在10000个之前, 发布不了 java
之前注册的是python的，你需要重新申请就可以了。
20 楼
chenlb
2009-04-13
注册了 gae ,但不是在10000个之前, 发布不了 java
19 楼
汪兆铭
2009-04-13
貌似java的支持比python要好，真不爽
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Eclipse Google 插件 Google App Engine SDK for Java Google App Engine文档 按钮 Google App Engine 开发包
download time: 2015-07-28 Google App Engine SDK for Java
Google App Engine可让您在Google的基础架构上运行您的网络应用程序。App Engine应用程序易于构建和维护，并可根据您的访问量和数据存储需要的增长轻松扩展。使用Google App Engine，将不再需要维护服务器：您只需...
With Programming Google App Engine, Google engineer Dan Sanderson provides practical guidance for designing and developing your application on Google's vast infrastructure, using App Engine's ...
NULL 博文链接：https://justsee.iteye.com/blog/905098
Google App Engine用于Eclipse的插件，共三个文件。
Google App Engine用于Eclipse的插件，共三个文件。
However, building and deploying scalable web applications using Google Web Toolkit and Google App Engine for Java can be challenging even to developers. The start to finish approach of this book ...
基于Google App Engine开发，使用Eclipse需要安装的插件。因为使用Eclipse中的“install new soft”非常慢，或者根本找不到资源，所以提供这个包（For Eclipse 4.3 kepler）。使用方法：在eclipse安装目录下找到...
您好Google App Engine for Java:trade_mark: 该示例向您展示如何将简单的“ Hello World”应用程序部署到 。 在你开始之前 下载并安装 。 。 。 初始化Cloud SDK。 gcloud init 安装Cloud SDK app-engine-...
appengine-magic, 设计用来方便地从Clojure使用 Google App Engine的库 for图书馆试图抽象基础结构螺母和 Bolts，用于为 Google App Engine 平台编写Clojure应用程序。Java为Java开发环境期望预先编译的类，通常不...