集中修复升级ADT22以后ClassNotFoundException的项目

Google前段时间放出了ADT22的版本，很多Android开发人员都升级了，结果一些问题导致和原来的project出现问题，具体表现为：

如果在libs下面引用了其他项目的jar包，会抛ClassNotFoundException，检查后发现bin目录里面的dexedLibs压根没东西，根本没有将libs下面的jar包编译进去。

解决：找到对应project里面的 .classpath文件将

 <classpathentry  kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>

改成

<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>

即可。

可惜我workspace里面的project太多，手工改起来不方便，写个程序吧，处理一下workspace里面的project

import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.util.ArrayList;import java.util.Scanner;public class ProjectFixer {public static void main(String[] args) {System.out.println("Fix workspace after ADT22 upgraded V0.1*");System.out.println("**Please input workspace directory path**");Scanner scanner = new Scanner(System.in);File workspace = new File(scanner.nextLine());if (!workspace.isDirectory()) {System.out.println("**Not a path ! Exiting......**\n");return;}System.out.println("Scanning workspace......");ArrayList<File> progjectFils = scanDir(workspace);System.out.println("Found " + progjectFils.size()+ " Files ,Enter to fix...");scanner.nextLine();scanner.close();fixProject(progjectFils);}static void fixProject(ArrayList<File> progjectFils) {          for (File file : progjectFils) {fixClassPathFile(file);}}public static void fixClassPathFile(File inFile) {try {FileInputStream fs = new FileInputStream(inFile);if (!inFile.isFile()) {System.out.println(inFile.getPath()+" is not an existing file");return;}else{System.out.println(inFile.getPath()+"   *fixing....");}File tempFile = new File(inFile.getAbsolutePath() + ".tmp");BufferedReader br = new BufferedReader(new InputStreamReader(fs,"UTF-8"));PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(tempFile), "UTF-8"));String line = null;while ((line = br.readLine()) != null) {if (!line.trim().contains("path=\"com.android.ide.eclipse.adt.LIBRARIES\"")) {pw.println(line);pw.flush();} else {pw.println(" <classpathentry exported=\"true\" kind=\"con\" path=\"com.android.ide.eclipse.adt.LIBRARIES\"/>");pw.flush();}}pw.close();br.close();if (!inFile.delete()) {System.out.println("Could not delete file");return;}if (!tempFile.renameTo(inFile))System.out.println("Could not rename file");} catch (FileNotFoundException ex) {ex.printStackTrace();} catch (IOException ex) {ex.printStackTrace();}}static ArrayList<File> scanDir(File dir) {ArrayList<File> classpaths = new ArrayList<File>();for (File projectDir : dir.listFiles()) {if (projectDir.isDirectory()) {for (File frojectFile : projectDir.listFiles()) {if (frojectFile.getName().equals(".classpath"))classpaths.add(frojectFile);}}}return classpaths;}}