[置顶] android头像相册/拍照选取,裁剪及上传综合案例

在android项目中，很多情况下上传头像的需求，像qq，新浪微博，微信，飞信等很多应用都有这样的功能。

之前我写过的两篇文章：andorid下从相册选取/拍照选取一张相片并剪切和android下Bitmap和base64之间的转换把他们综合起来，就可以来实现头像从相册/拍照选取,后裁剪再上传的功能

完整源码下载

这里我只贴出上传图片的方法代码，至于怎么获取到获取到图片，请看andorid下从相册选取/拍照选取一张相片并剪切

/* * 上传图片 */public void upload(View view) {try {ByteArrayOutputStream out = new ByteArrayOutputStream();bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);out.flush();out.close();byte[] buffer = out.toByteArray();byte[] encode = Base64.encode(buffer, Base64.DEFAULT);String photo = new String(encode);RequestParams params = new RequestParams();params.put("photo", photo);String url = "http://110.65.99.66:8080/jerry/UploadImgServlet";AsyncHttpClient client = new AsyncHttpClient();client.post(url, params, new AsyncHttpResponseHandler() {@Overridepublic void onSuccess(int statusCode, Header[] headers,byte[] responseBody) {try {if (statusCode == 200) {Toast.makeText(MainActivity.this, "头像上传成功!", 0).show();} else {Toast.makeText(MainActivity.this,"网络访问异常，错误码：" + statusCode, 0).show();}} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}@Overridepublic void onFailure(int statusCode, Header[] headers,byte[] responseBody, Throwable error) {Toast.makeText(MainActivity.this,"网络访问异常，错误码  > " + statusCode, 0).show();}});} catch (Exception e) {e.printStackTrace();}}

从上边代码可以看出，又用到我钟爱的 android-async-http 安卓异步http框架来访问网络

这样一操作，图片就会按Base64编码格式传送到服务器，而服务器端的代码也是非常简单的

package com.jerry.servlet;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.sun.org.apache.xml.internal.security.exceptions.Base64DecodingException;import com.sun.org.apache.xml.internal.security.utils.Base64;public class UploadImgServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {request.setCharacterEncoding("utf-8");response.setCharacterEncoding("utf-8");response.setContentType("text/html");String photo = request.getParameter("photo");try {// 对base64数据进行解码byte[] decode = Base64.decode(photo);File file = new File("e:\\decode.jpg");if(!file.exists()) {file.createNewFile();}FileOutputStream out = new FileOutputStream(file);out.write(decode);out.flush();out.close();} catch (Base64DecodingException e) {// TODO Auto-generated catch blocke.printStackTrace();}}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}

这样图片就成功的保存带E盘下

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