java使用HttpClient上传文件并使用SpringMVC接收文件

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本文分享的是使用HttpClient上传文件并在服务端使用SpringMVC接收文件

1、需要的jar包：

commons-httpclient-3.1.jar

commons-codec-1.9.jar

commons-lang-2.5.jar

2、上传代码

public void httpClient(File file,String s1,String s2) {
		String url = UPLOAD_URL;
		
		long startTime = System.currentTimeMillis();
		
		PostMethod postMethod = new PostMethod(url);
		try {
			Part[] parts = { new FilePart("file", file), new StringPart("fileName", "file"),
					new StringPart("s1", s1) ,new StringPart("s2", s2,"UTF-8")};
			MultipartRequestEntity mre = new MultipartRequestEntity(parts, postMethod.getParams());
			postMethod.setRequestEntity(mre);
			HttpClient client = new HttpClient();
			client.getHttpConnectionManager().getParams().setConnectionTimeout(50000);
			//请求
			int status = client.executeMethod(postMethod);
			//结束时间
			long endTime = System.currentTimeMillis();
			
			if (status == HttpStatus.SC_OK) {
				byte[] responseBody = postMethod.getResponseBody();
				String responseStr = new String(responseBody,"utf-8");	
				//********业务处理
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		} finally {
			postMethod.releaseConnection();
		}

	}

3、服务端接收代码

/**
 * PictureEntity 图片相关实体类 包括上传端传递的fileName/s1/s2等
 * @param file 接收到的文件
 * @param vo
 * @param request
 * @return
 */
@RequestMapping(value="http://www.zhangc.cn/zb_users/uploadimage.do",method=RequestMethod.POST)
@ResponseBody
public String uploadImage(@RequestParam(value = "file", required = false) MultipartFile file,
PatientTempEntity vo,HttpServletRequest request){
	
	if(file == null){
		return "没收接收到文件";
	}
	
	try {
		OutputStream out = new FileOutputStream(new File("/home/demo/"));
		// 保存图片 FileCopyUtils是Spring自带的工具类
		FileCopyUtils.copy(file.getInputStream(), out);
		

	} catch (Exception e) {
		e.printStackTrace();
		return "报错咯";
	}
	
	return "上传成功";
}