Android使用XUtils框架上传照片（一张或多张）和文本，server接收照片和文字（无乱码）

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>() {
		@Override
		public void onStart() {
			//上传開始
		}
		@Override
		public void onLoading(long total, long current,boolean isUploading) {
			//上传中
		}
		@Override
		public 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
		}
		@Override
		public 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 block
			e.printStackTrace();
		} catch (Exception e) {
			// TODO: handle exception
			e.printStackTrace();
		}

	}

}