HttpClient4 post上传文件, struts2 action接收

来源：互联网发布：mysql order by 原理编辑：程序博客网时间：2024/05/01 02:13

之前写了一个Struts2文件上传的Action，可以编写一个jsp上传页面来测试这个Action，我们也可以编写一个简单的客户端来测试上传的Action。利用HttpClient能够方便的实现这个效果，具体代码如下：

TestUpload.java

package com.figo.test;import java.io.File;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.mime.MultipartEntity;import org.apache.http.entity.mime.content.FileBody;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.util.EntityUtils;public class TestUpload {public static void main(String[] args) {// TODO Auto-generated method stubHttpClient httpclient = new DefaultHttpClient();try {HttpPost httppost = new HttpPost("http://localhost:8080/Upload/fileUpload!execute");FileBody bin = new FileBody(new File("D:\\Wangyf15\\sign.txt"));MultipartEntity reqEntity = new MultipartEntity();reqEntity.addPart("upload", bin);// upload为请求后台的File upload属性httppost.setEntity(reqEntity);HttpResponse response = httpclient.execute(httppost);int statusCode = response.getStatusLine().getStatusCode();if (statusCode == HttpStatus.SC_OK) {HttpEntity resEntity = response.getEntity();// httpclient自带的工具类读取返回数据System.out.println(EntityUtils.toString(resEntity));EntityUtils.consume(resEntity);}} catch (Exception e) {e.printStackTrace();} finally {try {httpclient.getConnectionManager().shutdown();} catch (Exception ignore) {}}}}

这样比人工构造http post简单很多，HttpClient还有很多强大的能够，有待于继续深入研究。