as 配置离线环境

1. as 随便新建一个工程，修改gradle 中的库为阿里最新库，进行同步。 此时会下载最新的gradle 文件。 

2. 下载as 离线maven 包，对应解压。 注意解压目录 C:\Users\Administrator\.android\manual-offline-m2\gmaven_stable\android

3. 按照离线包的readme 中的描述 新建 init.d 中的配置文件， 注意配置文件本身不做修改。 同时增加gradle 中的全局属性gradle.properties 文件 user.home=C:\\Users\\Administrator

4  再次编译，会某包未找到，用everything 查找，可以看出其在gradle 目录下， 而不在android 目录下。 使用 copy 工具对gradle 目录下的文件进行处理后，拷贝到android 目录。 

5. 如果还出现编译某包不存在的情况， 而缺少该包没有同步过来，基本上可以定位是网络问题， 无法下载相关的库 。 

copy 工具： 

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.LinkedList;import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;/*** 将Android中使用的gradle缓存目录中的jar包重新处理路径，用于内网离线构建* @author yhh**/public class CopyTool {// static String path = "D:\\Androidstudio2.3.3\\Android Studio\\gradle\\m2repository";// static String path = "D:\\gradle_cache\\files-2.1";static String path = "C:\\Users\\Administrator\\.gradle\\caches\\modules-2\\files-2.1"; //C:\Users\Administrator\.gradle\caches\modules-2\files-2.1// static String stopName= "files-2.1";static String stopName = "files-2.1";public static void main(String[] args) {System.out.println("Begin to copy");processDotForld();copyToLastForld();System.out.println("Copy finished");}/*** 处理文件夹中带点好的。；例如：D:/test/com.ifind.android/*/public static void processDotForld() {File file = new File(path);if (file.exists()) {LinkedList list = new LinkedList<>();File[] files = file.listFiles();for (int i = 0; i < files.length; i++) {File file2 = files[i];if (file2.isDirectory()) {//文件夹File desFile = creatforld(file2);copyFileToDes(file2, desFile);} else {//文件//目前不存在}}}}/*** 文件夹拷贝** @param source* @param des*/public static void copyFileToDes(File source, File des) {try {copyDir(source.getPath(), des.getPath());} catch (Exception e) {// TODO: handle exception}}/*** 文件夹拷贝** @param sourcePath* @param newPath* @throws IOException*/public static void copyDir(String sourcePath, String newPath) throws IOException {File file = new File(sourcePath);String[] filePath = file.list();if (!(new File(newPath)).exists()) {(new File(newPath)).mkdir();}for (int i = 0; i < filePath.length; i++) {if ((new File(sourcePath + file.separator + filePath[i])).isDirectory()) {copyDir(sourcePath + file.separator + filePath[i], newPath + file.separator + filePath[i]);}if (new File(sourcePath + file.separator + filePath[i]).isFile()) {copyFile(sourcePath + file.separator + filePath[i], newPath + file.separator + filePath[i]);}}}public static void copyFile(String oldPath, String newPath) throws IOException {File oldFile = new File(oldPath);File file = new File(newPath);FileInputStream in = new FileInputStream(oldFile);FileOutputStream out = new FileOutputStream(file);byte[] buffer = new byte[2097152];//while((in.read(buffer)) != -1){//  out.write(buffer);//}DataInputStream dis = new DataInputStream(new BufferedInputStream(in));DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(out));int length;while ((length = dis.read(buffer)) != -1) {dos.write(buffer, 0, length);}dos.flush();dos.close();dis.close();}/*** 创建文件夹** @param file*/public static File creatforld(File file) {String path = file.getAbsolutePath();if (path != null) {String temp = "files-2.1";temp = stopName;String temS[] = path.split(temp);if (temS != null && temS.length == 2) {String firstName = temS[0];String dotName = temS[1];if (dotName != null) {String[] lasts = dotName.split("\\.");int count = lasts.length;if (count < 2) {return null;}String pathNew = firstName + temp;for (int i = 0; i < count; i++) {if (i == 0) {pathNew = pathNew + lasts[i];} else {pathNew = pathNew + "\\" + lasts[i];}}if (pathNew != null && !pathNew.equals("")) {File fileForld = new File(pathNew);if (!fileForld.exists()) {fileForld.mkdirs();}return fileForld;}}}}return null;}public static ArrayList getFile(File file) {ArrayList list = new ArrayList<>();if (file.isDirectory()) {File[] filesTemp = file.listFiles();for (int i = 0; i < filesTemp.length; i++) {ArrayList result = getFile(filesTemp[i]);list.addAll(result);}} else {list.add(file);}return list;}// 创建目录public static boolean createDir(String destDirName) {File dir = new File(destDirName);if (dir.exists()) {// 判断目录是否存在System.out.println("创建目录失败，目标目录已存在！");return false;}if (!destDirName.endsWith(File.separator)) {// 结尾是否以"/"结束destDirName = destDirName + File.separator;}if (dir.mkdirs()) {// 创建目标目录System.out.println("创建目录成功！" + destDirName);return true;} else {System.out.println("创建目录失败！");return false;}}public static void copyToLastForld() {File file = new File(path);if (file.exists()) {LinkedList list = new LinkedList<>();File[] files = file.listFiles();for (int i = 0; i < files.length; i++) {File file2 = files[i];if (file2.isDirectory()) {//文件夹proceessForld(file2);} else {//文件//目前不存在}}}}private static void proceessForld(File file) {File[] files = file.listFiles();for (int i = 0; i < files.length; i++) {File file2 = files[i];if (file2.isDirectory()) {//文件夹proceessForld(file2);} else {//文件//目前不存在//判断是否进行拷贝try {proceessFile(file2);} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}private static void proceessFile(File file) throws FileNotFoundException {if (file != null) {String path = file.getAbsolutePath();if (path != null) {String[] lasts = splitString(path);if (lasts != null && lasts.length > 0) {int count = lasts.length;String last = lasts[count - 1];String last2 = lasts[count - 2];if (last2 != null && last2.length() > 20) {//拷贝到上一级目录String des = null;if (count < 2) {return;}for (int i = 0; i < count - 2; i++) {if (i == 0) {des = lasts[i];} else {des = des + "\\\\" + lasts[i];}}des = des + "\\\\" + last;String strParentDirectory = file.getParent();File parentFile = new File(strParentDirectory);strParentDirectory = parentFile.getParent() + "\\" + last;copy(file, path, strParentDirectory);} else {// System.out.println("source = "+path);}// System.out.println("source = "+path);// System.out.println("des = "+des);}}}}private static String[] splitString(String path) {String[] lasts = null;lasts = path.split("\\\\");int count = lasts.length;boolean isFirst = true;for (int i = 0; i < count; i++) {String str = lasts[i];if (str != null && str.contains(".")) {if (isFirst) {isFirst = false;System.out.println("\n\n\n\n");System.out.println("path=" + path + "");}System.out.println("str=" + str + "");}}return lasts;}/*** copy动作** @param file* @param source* @param des* @throws FileNotFoundException*/private static void copy(File file, String source, String des) throws FileNotFoundException {if (file != null) {FileInputStream fis = null;FileOutputStream fot = null;byte[] bytes = new byte[1024];int temp = 0;File desFile = new File(des);if (desFile.exists()) {return;}try {fis = new FileInputStream(file);fot = new FileOutputStream(desFile);while ((temp = fis.read(bytes)) != -1) {fot.write(bytes, 0, temp);fot.flush();}} catch (IOException e) {e.printStackTrace();} finally {if (fis != null) {try {fis.close();} catch (IOException e) {e.printStackTrace();}}if (fot != null) {try {fot.close();} catch (IOException e) {e.printStackTrace();}}}}}private static String getContent(String content) {String str = content;if (content != null && content.length() > 4) {str = content.substring(0, 4);}return str;}
}

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