我做webwork 的上传时候,上传功能正常实现,可是控制台输出异常信息:
java.lang.IllegalStateException: getReader() or getInputStream() called
请问这个信息是什么意思啊,什么原因导致出现这个错误的?
09:27:42.906 INFO [SocketListener0-0] com.opensymphony.webwork.dispatcher.DispatcherUtils.getSaveDir(DispatcherUtils.java:359) >16> Unable to find 'webwork.multipart.saveDir' property setting. Defaulting to javax.servlet.context.tempdir
09:27:43.359 ERROR! [SocketListener0-0] com.opensymphony.webwork.dispatcher.DispatcherUtils.prepare(DispatcherUtils.java:394) >17> Error setting character encoding to 'UTF-8' - ignoring.
java.lang.IllegalStateException: getReader() or getInputStream() called
at org.mortbay.jetty.servlet.ServletHttpRequest.setCharacterEncoding(ServletHttpRequest.java:602)
at javax.servlet.ServletRequestWrapper.setCharacterEncoding(ServletRequestWrapper.java:105)
at com.opensymphony.webwork.dispatcher.DispatcherUtils.prepare(DispatcherUtils.java:392)
at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:160)
at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
at com.opensymphony.webwork.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:88)
at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
at org.mortbay.http.HttpServer.service(HttpServer.java:909)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:820)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:986)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:837)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:245)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
====新建 文本文档.txt
===================C:\DOCUME~1\Z\LOCALS~1\Temp\Jetty_127_0_0_1_8080__\upload__146e3062_112ac37bbfb__8000_00000001.tmp
===================新建 文本文档.txt
09:27:48.437 INFO [SocketListener0-0] com.opensymphony.webwork.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:242) >22> Removing file up C:\DOCUME~1\Z\LOCALS~1\Temp\Jetty_127_0_0_1_8080__\upload__146e3062_112ac37bbfb__8000_00000001.tmp
以下是Action代码:
public class FileUploadAction extends ActionSupport implements ModelDriven{
private File up;
private String upContentType;
private String upFileName;
private String filepath;
private FileUploadService fileuploadService;
private FileUpload fileinfo = new FileUpload();
public String execute() throws Exception {
if(up != null){
System.err.println("===="+upFileName);
FileUploadAction(up,upFileName);
}
return SUCCESS;
}
private String fileFileName;
public String FileUploadAction(File up,String upFileName) {
// 以下为保存文件,视情况修改
if (up.isFile()) {
//fileFileName = name;
// filename = file.getName();
fileFileName = upFileName;
FileOutputStream outputStream;
filepath = "E:/uploadfolder/";
System.out.println("==================="+up);
System.out.println("==================="+fileFileName);
fileinfo.setFileFilename(fileFileName);
fileinfo.setFilepath(filepath);
fileuploadService.insertFileInfo(fileinfo);
try {
outputStream = new FileOutputStream(filepath + fileFileName);
FileInputStream fileIn = new FileInputStream(up);
byte[] buffer = new byte[1024];
int len;
try {
while ((len = fileIn.read(buffer)) > 0) {
outputStream.write(buffer, 0, len);
}
} catch (IOException e) {
e.printStackTrace();
}
try {
fileIn.close();
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
return fileFileName;
}
public void setUp(File up) {
this.up = up;
}
public void setUpContentType(String upContentType) {
this.upContentType = upContentType;
}
public void setUpFileName(String upFileName) {
this.upFileName = upFileName;
}
public Object getModel() {
return fileinfo;
}
public void setFileuploadService(FileUploadService fileuploadService) {
this.fileuploadService = fileuploadService;
}
}
这个问题曾发到过论坛里,可是被评为隐藏贴,还扣了我30分......到现在不知道为什么被评为隐藏......谁知道的话也帮我看看原因吧,我先谢过了。
转自:http://simpledev.iteye.com/blog/224818
在使用webwork-2.2.4.jar,xwork-1.2.1.jar时文件上传发生异常.
- 00:29:07.390 ERROR! [SocketListener0-1] com.opensymphony.webwork.dispatcher.DispatcherUtils.prepare(DispatcherUtils.java:394) >17> Error setting character encoding to 'UTF-8' - ignoring.
- java.lang.IllegalStateException: getReader() or getInputStream() called
- at org.mortbay.jetty.servlet.ServletHttpRequest.setCharacterEncoding(ServletHttpRequest.java:602)
- at javax.servlet.ServletRequestWrapper.setCharacterEncoding(ServletRequestWrapper.java:105)
- at com.opensymphony.webwork.dispatcher.DispatcherUtils.prepare(DispatcherUtils.java:392)
- ...
00:29:07.390 ERROR! [SocketListener0-1] com.opensymphony.webwork.dispatcher.DispatcherUtils.prepare(DispatcherUtils.java:394) >17> Error setting character encoding to 'UTF-8' - ignoring. java.lang.IllegalStateException: getReader() or getInputStream() called at org.mortbay.jetty.servlet.ServletHttpRequest.setCharacterEncoding(ServletHttpRequest.java:602) at javax.servlet.ServletRequestWrapper.setCharacterEncoding(ServletRequestWrapper.java:105) at com.opensymphony.webwork.dispatcher.DispatcherUtils.prepare(DispatcherUtils.java:392) ...
分析源码如下:
com.opensymphony.webwork.dispatcher.DispatcherUtils.java:394
- String encoding = null;
- if (Configuration.isSet(WebWorkConstants.WEBWORK_I18N_ENCODING)) {
- encoding = Configuration.getString(WebWorkConstants.WEBWORK_I18N_ENCODING);
- }
- Locale locale = null;
- if (Configuration.isSet(WebWorkConstants.WEBWORK_LOCALE)) {
- locale = LocalizedTextUtil.localeFromString(Configuration.getString(WebWorkConstants.WEBWORK_LOCALE), request.getLocale());
- }
-
- if (encoding != null && !MultiPartRequest.isMultiPart(request)) {
- try {
- request.setCharacterEncoding(encoding);
- } catch (Exception e) {
- LOG.error("Error setting character encoding to '" + encoding + "' - ignoring.", e);
- }
- }
String encoding = null; if (Configuration.isSet(WebWorkConstants.WEBWORK_I18N_ENCODING)) { encoding = Configuration.getString(WebWorkConstants.WEBWORK_I18N_ENCODING); } Locale locale = null; if (Configuration.isSet(WebWorkConstants.WEBWORK_LOCALE)) { locale = LocalizedTextUtil.localeFromString(Configuration.getString(WebWorkConstants.WEBWORK_LOCALE), request.getLocale()); } if (encoding != null && !MultiPartRequest.isMultiPart(request)) { try { request.setCharacterEncoding(encoding); } catch (Exception e) { LOG.error("Error setting character encoding to '" + encoding + "' - ignoring.", e); } }
webwork.properties
- webwork.locale=en_US
- webwork.i18n.encoding=UTF-8
webwork.locale=en_US webwork.i18n.encoding=UTF-8
文件上传经过控制层处理时,得到的文件file对象,文件类型ContentType,文件名FileName都是正确的,文件名中文显示正常.
为了避免上面webwork抛出的异常,我们可以使用低版本的webwork(webwork-2.2.2.jar,xwork-1.1.3.jar)
运行程序之后系统没有抛出"java.lang.IllegalStateException: getReader() or getInputStream() called",但是文件名如果是中文为乱码,
为了解决文件名中文乱码问题,我们可以采取两种简单的处理方法:
//方法一:获取文件后缀名
//优点:使用RandomStringUtils随机生成10位字符为文件名,可以避免上传后存在文件名同名情况
- int idx = file4FileName.indexOf(".");
- String suffix = fileFileName.substring(idx);
- System.out.println(suffix);
- String prefix = org.apache.commons.lang.RandomStringUtils.randomAlphabetic(10);
- String filename = prefix + suffix;
- System.out.println(filename);
- fileFileName = filename;
int idx = file4FileName.indexOf("."); String suffix = fileFileName.substring(idx); System.out.println(suffix); String prefix = org.apache.commons.lang.RandomStringUtils.randomAlphabetic(10); String filename = prefix + suffix; System.out.println(filename); fileFileName = filename;
//方法二:字符串转码
//使用上传的文件名,将乱码中文名转码(UTF-8),
- String filename2 = new String(fileFileName.getBytes(),"UTF-8");
- System.out.println("filename2:"+filename2);
- fileFileName = filename2;
String filename2 = new String(fileFileName.getBytes(),"UTF-8"); System.out.println("filename2:"+filename2); fileFileName = filename2;
将该问题解决。(注:默认已使用webwork上传图片而出现上面异常时分析,具体上传代码略)
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