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发表时间：2010-02-23
最后修改：2010-03-17
接上篇 webserver使用的是resin3.1.9,首先在web.xml中配置invoker方式来处理请求 <?xml version="1.0" encoding="UTF-8"?>
<web-app>
<classpath id='WEB-INF/classes'
source='WEB-INF/src'
compile='false'/>
<classpath id='WEB-INF/lib' library-dir='true'/>
<servlet-mapping url-pattern='/servlet/*' servlet-name='invoker'/>
</web-app>
然后写一个search.jsp，选择开始、结束日期后，将提交到UpdateServlet来处理 <form name="form" method="post" action="/servlet/com.swfml.update.action.UpdateServlet"> ...... </form> 然后来写UpdateServlet，根据不同的action执行不同的操作 public void doPost(HttpServletRequest request, HttpServletResponse response) {
String defaultAction = "";
String url = actionMap(request, response, defaultAction);
if ((url.length() > 0) && (!response.isCommitted())) {
try {
response.sendRedirect(URLDecoder.decode(url));
} catch (IOException e) {
e.printStackTrace();
}
}
}
private String actionMap(HttpServletRequest request, HttpServletResponse response, String defaultAction) {
String action = defaultAction;
String url = "";
if ((request.getParameter("action") != null) && (request.getParameter("action").length() > 0)) {
action = request.getParameter("action").trim();
}
if(action.equals("search")) {
doSearch(request, response);
} else if(action.equals("create")) {
doCreate(request, response);
} else if(action.equals("upload")){
doUpload(request, response);
} else if(action.equals("unzip")){
doUnzip(request, response);
} else if(action.equals("update")){
doUpdate(request, response);
}
return url;
}
然后来处理检索 private void doSearch(HttpServletRequest request,
HttpServletResponse response) {
String startDate = request.getParameter("startDate");
String endDate = request.getParameter("endDate");
String searchDir = getServletContext().getRealPath("/");
searchDir = searchDir.substring(0, searchDir.length() - 1);
ArrayList updateFileList = ProUpdate.searchFile(searchDir, startDate, endDate);
request.setAttribute("updateFileList", updateFileList);
request.getSession().setAttribute("updateFileList", updateFileList);
request.setAttribute("updateMessage", ProUpdate.updateMessage);
try {
RequestDispatcher rd = request.getRequestDispatcher("/update/search.jsp");
rd.forward(request, response);
} catch (Exception e) {
e.printStackTrace();
}
}
其它处理类似，包含的功能有： 文件检索、生成zip包，解压zip包、备份替换文件、servlet实现上传下载
生成zip包 /**
* 将更新文件列表打包到输出文件
* @param outFile
* @param updateFileList
* @throws FileNotFoundException
*/
public static void createZip(String zipFile, ArrayList updateFileList) throws FileNotFoundException {
String searchDir = getSearchDir(updateFileList);
File outfile;
if(zipFile.length() > 0) {
outfile = new File(zipFile);
} else {
outfile = new File(updateFile);
}
ZipOutputStream outputStream = new ZipOutputStream(new FileOutputStream(outfile));
byte[] b = new byte[1024];
int read = 0;
StringBuffer strBuffer = new StringBuffer();
try {
for(int i = updateFileList.size() - 1; i >=0; i --) {
File file = (File)updateFileList.get(i);
String filePath = "";
if(file.getPath().length() > searchDir.length()) {
filePath = file.getPath().substring(searchDir.length() + 1) + (file.isDirectory() ? "/" : "");
} else {
filePath = "/";
}
filePath = filePath.replace('\\', '/');
if(!pathIsExit(filePath)) {
outputStream.putNextEntry(new ZipEntry(filePath));
}
if(file.isFile()) {
strBuffer.append("/" + filePath + "\r\n");
FileInputStream inputStream = new FileInputStream(file);
while((read = inputStream.read(b)) != -1) {
outputStream.write(b, 0, read);
}
inputStream.close();
}
}
outputStream.putNextEntry(new ZipEntry(msgFileName));
outputStream.write(strBuffer.toString().getBytes());
outputStream.closeEntry();
printZipMessage(outfile.getPath());
} catch(Exception e) {
e.printStackTrace();
} finally {
try {
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
解压zip包 /**
* 解压文件到指定目录
* @param zipFilePath
* @throws FileNotFoundException
*/
public static String unZip(String outputPath, String zipFilePath) throws FileNotFoundException {
ZipInputStream inputStream = new ZipInputStream(new FileInputStream(zipFilePath));
ZipEntry entry;
Date date = new Date();
if(outputPath.length() > 0) {
outputDir = outputPath;
}
outputDir = outputDir + File.separator + timeDateFormat.format(date);
File outputFile = new File(outputDir);
outputFile.mkdirs();
String updateMesaage = outputDir + "!";
try {
while((entry = inputStream.getNextEntry()) != null) {
if(entry.isDirectory()) {
File file = new File(outputDir + File.separator + entry.getName().substring(0, entry.getName().length() - 1));
file.mkdirs();
} else {
File file = new File(outputDir + File.separator + entry.getName());
System.out.println(file.getPath());
if(!file.getParentFile().exists()) {
file.getParentFile().mkdirs();
}
file.createNewFile();
FileOutputStream outputStream = new FileOutputStream(file);
byte[] b = new byte[1024];
int read = 0;
while((read = inputStream.read(b)) != -1) {
outputStream.write(b, 0, read);
}
outputStream.close();
if(file.getName().equals(msgFileName)) {
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
String s = "";
while((s = reader.readLine()) != null) {
updateMesaage += s + "#";
}
}
}
}
inputStream.close();
} catch(Exception e) {
e.printStackTrace();
}
return updateMesaage;
}
下载更新包 /**
* 生成更新包
* @param request
* @param response
*/
private void doCreate(HttpServletRequest request,
HttpServletResponse response) {
ArrayList updateFileList = new ArrayList();
String zipFile = getServletContext().getRealPath("/") + File.separator + "update.zip";
if(request.getSession().getAttribute("updateFileList") != null) {
updateFileList = (ArrayList)request.getSession().getAttribute("updateFileList");
ProUpdate.createUpdateFile(zipFile, updateFileList);
}
response.setContentType("text/html");
try {
response.sendRedirect("/update.zip");
} catch (IOException e) {
e.printStackTrace();
}
}
上传更新包 /**
* 上传更新包
* @param request
* @param response
*/
private void doUpload(HttpServletRequest request,
HttpServletResponse response) {
try {
File updatefile = new File(getServletContext().getRealPath("/") + File.separator + "WEB-INF" + File.separator + "update" + File.separator + "update.zip");
File tempFile = new File(getServletContext().getRealPath("/") + File.separator + "WEB-INF" + File.separator + "update" + File.separator + "update.temp.txt");
if(!tempFile.exists()) {
tempFile.createNewFile();
}
RandomAccessFile raFile = new RandomAccessFile(tempFile, "rw");
ServletInputStream inputStream = request.getInputStream();
FileOutputStream outputStream = new FileOutputStream(updatefile);
byte[] b = new byte[1024];
int read = 0;
while((read = inputStream.read(b)) != -1) {
raFile.write(b, 0, read);
}
inputStream.close();
raFile.close();
raFile = new RandomAccessFile(tempFile, "r");
String startFlag = raFile.readLine();
String endFlag = startFlag + "--";
String line = null;
raFile.seek(0);
long startIndex = 0;
long endIndex = 0;
while((line = raFile.readLine()) != null) {
if(line.equals(startFlag) && !line.equals(endFlag)) {
startIndex = raFile.getFilePointer() - (startFlag.length() + 2);
} else if(line.equals(endFlag)){
endIndex = raFile.getFilePointer() - (endFlag.length() + 2);
}
}
raFile.seek(0);
raFile.seek(startIndex);
raFile.readLine();
raFile.readLine();
raFile.readLine();
raFile.readLine();
while(raFile.getFilePointer() < endIndex) {
outputStream.write(raFile.readByte());
}
outputStream.close();
raFile.close();
if(tempFile.exists()) {
tempFile.delete();
}
request.setAttribute("updatefilepath", updatefile.getPath());
RequestDispatcher rd = request.getRequestDispatcher("/update/uploadResult.jsp");
rd.forward(request, response);
} catch(Exception e) {
e.printStackTrace();
}
}
具体请参见代码，欢迎拍砖！
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发表时间：2010-02-26
很不错的收藏了，项目中应该会很有用，楼主是这是历年项目经验啊。
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发表时间：2010-02-26
项目中也需要类似的东西，感谢楼主啊。过滤的地方可以改进一下。
File[] files = rootDir.listFiles(getFileRegexFilter("\\.svn")); public static FilenameFilter getFileRegexFilter(String regex) { final String regex_ = regex; return new FilenameFilter() { public boolean accept(File file, String name) { boolean ret = name.matches(regex_); return !ret; } }; } |
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发表时间：2010-03-01
whiteface999 写道 项目中也需要类似的东西，感谢楼主啊。过滤的地方可以改进一下。
File[] files = rootDir.listFiles(getFileRegexFilter("\\.svn")); public static FilenameFilter getFileRegexFilter(String regex) { final String regex_ = regex; return new FilenameFilter() { public boolean accept(File file, String name) { boolean ret = name.matches(regex_); return !ret; } }; } 恩，这个工具的核心就是检索文件，所以想提高效率也就是在这里优化 |
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发表时间：2010-03-01
ahpo 写道 很不错的收藏了，项目中应该会很有用，楼主是这是历年项目经验啊。
惭愧，惭愧 |
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