由于公司运维需要以及应用中需要加上应用推广的统计，往往要对应二三十个渠道，按照正常方法一个一个的去生成不同渠道包的应用，不仅浪费了时间，而且大大降低了效率.

上一篇讲到使用Ant进行Zip/Tar包的解压缩，实际上Ant工具不仅仅具有此类功能，它更强大的地方在于自动化调用程序完成项目的编译，打包，测试等. 类似于C语言中的make脚本完成这些工作的批处理任务. 不同于MakeFile的是,Ant是纯Java编写的，因此具有很好的跨平台性.

在此我主要讲下如何自动构建工具Ant, 对应用进行批量打包, 生成对应不同市场的应用:

首先分别看一下用于打包的Java工程AntTest和需要被打包进行发布的Android工程结构:

market.txt里保存需要打包的市场标识,如：

youmeng

gfan

.......

此文件里自行根据需求添加渠道名称.

然后看一下实现批量打包AntTest类中的内容:

注意:红色标注部分需要进行修改：

package com.cn.ant;import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;import org.apache.tools.ant.DefaultLogger;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.ProjectHelper;public class AntTest {private Project project;public void init(String _buildFile, String _baseDir) throws Exception {project = new Project();project.init();DefaultLogger consoleLogger = new DefaultLogger();consoleLogger.setErrorPrintStream(System.err);consoleLogger.setOutputPrintStream(System.out);consoleLogger.setMessageOutputLevel(Project.MSG_INFO);project.addBuildListener(consoleLogger);// Set the base directory. If none is given, "." is used.if (_baseDir == null)_baseDir = new String(".");project.setBasedir(_baseDir);if (_buildFile == null)_buildFile = new String(projectBasePath + File.separator+ "build.xml");// ProjectHelper.getProjectHelper().parse(project, new// File(_buildFile));<span style="color:#FF0000;">// 关键代码</span>ProjectHelper.configureProject(project, new File(_buildFile));}public void runTarget(String _target) throws Exception {// Test if the project existsif (project == null)throw new Exception("No target can be launched because the project has not been initialized. Please call the 'init' method first !");// If no target is specified, run the default one.if (_target == null)_target = project.getDefaultTarget();// Run the targetproject.executeTarget(_target);}<span style="color:#FF0000;">private final static String projectBasePath = "D:\\android\\workspace3\\XXX";//要打包的项目根目录private final static String copyApkPath = "D:\\android\\apktest";//保存打包apk的根目录private final static String signApk = "XXX-release.apk";//这里的文件名必须是准确的项目名！private final static String reNameApk = "XXX_";//重命名的项目名称前缀(地图项目不用改)private final static String placeHolder = "@market@";//需要修改manifest文件的地方(占位符)
</span>public static void main(String args[]) {long startTime = 0L;long endTime = 0L;long totalTime = 0L;Calendar date = Calendar.getInstance();SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd:HH:mm:ss");try {System.out.println("---------ant批量自动化打包开始----------");startTime = System.currentTimeMillis();date.setTimeInMillis(startTime);System.out.println("开始时间为:" + sdf.format(date.getTime()));BufferedReader br = new BufferedReader(new FileReader("market.txt"));String flag = null;while ((flag = br.readLine()) != null) {// 先修改manifest文件:读取临时文件中的@market@修改为市场标识,然后写入manifest.xml中String tempFilePath = projectBasePath + File.separator+ "AndroidManifest.xml.temp";String filePath = projectBasePath + File.separator+ "AndroidManifest.xml";write(filePath, read(tempFilePath, flag.trim()));// 执行打包命令AntTest mytest = new AntTest();mytest.init(projectBasePath + File.separator + "build.xml",projectBasePath);mytest.runTarget("clean");mytest.runTarget("release");// 打完包后执行重命名加拷贝操作File file = new File(projectBasePath + File.separator + "bin"+ File.separator + signApk);// bin目录下签名的apk文件File renameFile = new File(copyApkPath + File.separator + reNameApk+ flag + ".apk");boolean renametag = file.renameTo(renameFile);System.out.println("rename------>"+renametag);System.out.println("file ------>"+file.getAbsolutePath());System.out.println("rename------>"+renameFile.getAbsolutePath());}System.out.println("---------ant批量自动化打包结束----------");endTime = System.currentTimeMillis();date.setTimeInMillis(endTime);System.out.println("结束时间为:" + sdf.format(date.getTime()));totalTime = endTime - startTime;System.out.println("耗费时间为:" + getBeapartDate(totalTime));} catch (Exception e) {e.printStackTrace();System.out.println("---------ant批量自动化打包中发生异常----------");endTime = System.currentTimeMillis();date.setTimeInMillis(endTime);System.out.println("发生异常时间为:" + sdf.format(date.getTime()));totalTime = endTime - startTime;System.out.println("耗费时间为:" + getBeapartDate(totalTime));}}/*** 根据所秒数,计算相差的时间并以**时**分**秒返回* * @param d1* @param d2* @return*/public static String getBeapartDate(long m) {m = m / 1000;String beapartdate = "";int nDay = (int) m / (24 * 60 * 60);int nHour = (int) (m - nDay * 24 * 60 * 60) / (60 * 60);int nMinute = (int) (m - nDay * 24 * 60 * 60 - nHour * 60 * 60) / 60;int nSecond = (int) m - nDay * 24 * 60 * 60 - nHour * 60 * 60 - nMinute* 60;beapartdate = nDay + "天" + nHour + "小时" + nMinute + "分" + nSecond + "秒";return beapartdate;}public static String read(String filePath, String replaceStr) {BufferedReader br = null;String line = null;StringBuffer buf = new StringBuffer();try {// 根据文件路径创建缓冲输入流br = new BufferedReader(new FileReader(filePath));// 循环读取文件的每一行, 对需要修改的行进行修改, 放入缓冲对象中while ((line = br.readLine()) != null) {// 此处根据实际需要修改某些行的内容if (line.contains(placeHolder)) {line = line.replace(placeHolder, replaceStr);buf.append(line);} else {buf.append(line);}buf.append(System.getProperty("line.separator"));}} catch (Exception e) {e.printStackTrace();} finally {// 关闭流if (br != null) {try {br.close();} catch (IOException e) {br = null;}}}return buf.toString();}/*** 将内容回写到文件中* * @param filePath* @param content*/public static void write(String filePath, String content) {BufferedWriter bw = null;try {// 根据文件路径创建缓冲输出流bw = new BufferedWriter(new FileWriter(filePath));// 将内容写入文件中bw.write(content);} catch (Exception e) {e.printStackTrace();} finally {// 关闭流if (bw != null) {try {bw.close();} catch (IOException e) {bw = null;}}}}
}

然后是Android工程中需要进行修改的部分:

1. 修改local.properties中的sdk根目录:

sdk.dir=D:\\android\\android-sdk-windows-r17\\android-sdk-windows-r17

2. 修改ant.properties中签名文件的路径和密码(如果需要)
    key.store=D:\\android\\mykeystore
    key.store.password=123456
    key.alias=mykey
    key.alias.password=123456

3. 修改AndroidManifest.xml.temp
    拷贝AndroidManifest.xml一份,命名为AndroidManifest.xml.temp
    将需要替换的地方改为占位符,需与打包工程AntTest中的placeHolder常量一致

如： <meta-data android:value="@market @" android:name="UMENG_CHANNEL"/>

4. Build.xml中:

<project name="XXX" default="help">,XXX必须为Android工程名称.

如果机器没有配置过Ant环境变量，可根据如下步骤进行配置:

ANT环境变量设置:

Windows下ANT用到的环境变量主要有2个，ANT_HOME 、PATH。

设置ANT_HOME指向ant的安装目录。

设置方法：
ANT_HOME = D:/apache_ant_1.7.0

将%ANT_HOME%/bin; %ANT_HOME%/lib添加到环境变量的path中。

设置方法：
PATH = %ANT_HOME%/bin; %ANT_HOME%/lib