Android上传图片，这里我使用了如今比較流行的XUtils框架。该框架能够实现文件上传、文件下载、图片缓存等等，有待研究。

以下是Android端上传的代码：

xUtils.jar下载

String uploadHost="http://192.168.1.100:8080/ReceiveImgFromAndroid/ReceiveImgServlet";  //server接收地址
RequestParams params=new RequestParams();
params.addBodyParameter("msg","上传图片");
params.addBodyParameter("img1", new File(filePath));  //filePath是手机获取的图片地址
sendImgToServer(params,uploadPath);

这是Xutils框架中上传文件的方法：

public  void uploadMethod(final RequestParams params,final String uploadHost) {http.send(HttpRequest.HttpMethod.POST, uploadHost, params,new RequestCallBack<String>() {@Overridepublic void onStart() {//上传開始}@Overridepublic void onLoading(long total, long current,boolean isUploading) {//上传中}@Overridepublic void onSuccess(ResponseInfo<String> responseInfo) {//上传成功，这里面的返回值，就是server返回的数据//使用 String result = responseInfo.result 获取返回值}@Overridepublic void onFailure(HttpException error, String msg) {//上传失败}});
}

上面写完了手机端提交照片。接下来要写一个server端。

server端接收手机端上传照片的方法与接收jsp界面上传照片的方法同样。是用了jspsmartupload_zh.jar包文件。最简单的方式自己实现一个servlet，在里面调用SmartUpload类接收即可。这个还须要处理好接收文字的乱码问题。

以下是详细的代码：

SmartUpload.jar下载    server測试源代码下载

package com.example.servlet;import java.io.IOException;
import java.text.SimpleDateFormat;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.jspsmart.upload.SmartUpload;
import com.jspsmart.upload.SmartUploadException;/*** 接收图片* * @author Administrator* @time 2015年8月10日09:27:17*/public class ReceiveImgServlet extends HttpServlet {/*** */private static final long serialVersionUID = 1L;public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doPost(request, response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html");response.setCharacterEncoding("utf-8");request.setCharacterEncoding("utf-8");SmartUpload smartUpload = new SmartUpload();try {smartUpload.initialize(this.getServletConfig(), request, response);smartUpload.upload();String msg = smartUpload.getRequest().getParameter("msg");if (msg != null)msg = new String(msg.getBytes("GBK"), "utf-8");com.jspsmart.upload.Files files = smartUpload.getFiles();for (int i = 0; i < files.getCount(); i++) {com.jspsmart.upload.File file = files.getFile(i);if (!file.isMissing()) {SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");String name = sdf.format(new java.util.Date());name = name + "." + file.getFileExt();// 得到文件的扩展名String filename = this.getServletContext().getRealPath("/")+ "images\\" + name;file.saveAs(filename);}}} catch (SmartUploadException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}}}