根据svn生成的补丁包文件挑选修改的文件

 1.使用svn 生成 补丁包文件

选择要生成补丁包的项目，右键-》 选择term -> 创建补丁包，

补丁包文件名为:2015-04-18-safe-patch.txt

2.解析补丁包文件，生成更新文件。

public class FreePatchUtil {
 // 2015-02-26patch.txt
 
 public static String patchFile = "E:/tjisoftstone/beijing_update/cbe_merchant_api/2015-04-18-safe-patch.txt";// 补丁文件,由eclipse
                             // svn
                             // plugin生成

 public static String projectPath = "E:/tjisoftstone/tianjin_pay_new/cbe_merchant_api";// 项目文件夹路径

 public static String webContent = "WebContent";// web应用文件夹名

 public static String classPath = projectPath
   + "/WebContent/WEB-INF/classes";// class存放路径

 public static String desPath = "E:/tjisoftstone/beijing_update/cbe_merchant_api";// 补丁文件包存放路径

 public static String version = "2015-04-18-safe-patch";// 2015-04-1-chinapay-patch
               // "2015-03-27-chinapay";//补丁版本

 /**
  * @param args
  * @throws Exception
  */
 public static void main(String[] args) throws Exception {
  copyFiles(getPatchFileList());
  // getPatchFileList();

 }

 public static List<String> getPatchFileList() throws Exception {
  List<String> fileList = new ArrayList<String>();
  FileInputStream f = new FileInputStream(patchFile);
  BufferedReader dr = new BufferedReader(new InputStreamReader(f));
  String line;
  while ((line = dr.readLine()) != null) {
   if (line.indexOf("Index:") != -1) {
    line = line.replaceAll(" ", "");
    line = line.substring(line.indexOf(":") + 1, line.length());
    fileList.add(line);
   }
  }
  return fileList;
 }

 public static void copyFiles(List<String> list) {

  for (String fullFileName : list) {
   if (fullFileName.indexOf("src/") != -1) {// 对源文件目录下的文件处理
    // E:/tjisoftstone/dianpiao/dp_3_0/DraftManage-ebank/src/test/patch/FreePatchUtil.java
    // String fileName=fullFileName.replace("src","");
    int classStart = fullFileName.lastIndexOf("src");
    String fileName = fullFileName.substring(classStart,
      fullFileName.length()).replace("src", "");

    fullFileName = classPath + fileName;
    if (fileName.endsWith(".java")) {
     fileName = fileName.replace(".java", ".class");
     fullFileName = fullFileName.replace(".java", ".class");
    }
    String tempDesPath = fileName.substring(0, fileName
      .lastIndexOf("/"));
    String desFilePathStr = desPath + "/" + version
      + "/WebContent/WEB-INF/classes" + tempDesPath;
    String desFileNameStr = desPath + "/" + version
      + "/WebContent/WEB-INF/classes" + fileName;
    File desFilePath = new File(desFilePathStr);
    if (!desFilePath.exists()) {
     desFilePath.mkdirs();
    }
    System.out.print("fullFileName:" + fullFileName);
    System.out.println("desFileNameStr:" + desFileNameStr);
    copyFile(fullFileName, desFileNameStr);
    System.out.println(fullFileName + "复制完成");
   } else if (fullFileName.indexOf(".jsp") != -1) {// 对普通目录的处理
    // jsp 页面复制
    fullFileName = projectPath + "/" + fullFileName;
    int start = fullFileName.lastIndexOf("WebContent");

    String desFileName = fullFileName.substring(start, fullFileName
      .length());
    // String desFileName=fullFileName.replaceAll(webContent,"");
    // fullFileName=projectPath+"/"+fullFileName;//将要复制的文件全路径
    String fullDesFileNameStr = desPath + "/" + version + "/"
      + desFileName;
    String desFilePathStr = fullDesFileNameStr.substring(0,
      fullDesFileNameStr.lastIndexOf("/"));
    File desFilePath = new File(desFilePathStr);
    if (!desFilePath.exists()) {
     desFilePath.mkdirs();
    }
    copyFile(fullFileName, fullDesFileNameStr);
    System.out.println(fullDesFileNameStr + "复制完成");
   } else {
    System.out.println("无法解析：" + fullFileName);
    int start = fullFileName.lastIndexOf("WebContent");
    String desFileName = fullFileName.substring(start, fullFileName
      .length());
    fullFileName = projectPath + "/" + fullFileName;
    System.out.println("无法解析：" + fullFileName);

    String fullDesFileNameStr = desPath + "/" + version + "/"
      + desFileName;
    String desFilePathStr = fullDesFileNameStr.substring(0,
      fullDesFileNameStr.lastIndexOf("/"));
    File desFilePath = new File(desFilePathStr);
    if (!desFilePath.exists()) {
     desFilePath.mkdirs();
    }
    copyFile(fullFileName, fullDesFileNameStr);
    System.out.println("源地址：" + fullFileName + "----"
      + fullDesFileNameStr + "复制完成");
   }

  }

 }

 private static void copyFile(String sourceFileNameStr, String desFileNameStr) {
  File srcFile = new File(sourceFileNameStr);
  File desFile = new File(desFileNameStr);
  try {
   copyFile(srcFile, desFile);
  } catch (IOException e) {
   e.printStackTrace();
  }
 }

 public static void copyFile(File sourceFile, File targetFile)
   throws IOException {
  BufferedInputStream inBuff = null;
  BufferedOutputStream outBuff = null;
  try {
   // 新建文件输入流并对它进行缓冲
   inBuff = new BufferedInputStream(new FileInputStream(sourceFile));

   // 新建文件输出流并对它进行缓冲
   outBuff = new BufferedOutputStream(new FileOutputStream(targetFile));

   // 缓冲数组
   byte[] b = new byte[1024 * 5];
   int len;
   while ((len = inBuff.read(b)) != -1) {
    outBuff.write(b, 0, len);
   }
   // 刷新此缓冲的输出流
   outBuff.flush();
  } finally {
   // 关闭流
   if (inBuff != null)
    inBuff.close();
   if (outBuff != null)
    outBuff.close();
  }
 }

}