博客

1.无参数

public static PostMethod postMethod(String url) {
		return new PostMethod(url);
	}
	
	/**
	 * 通过postMethod类进行请求
	 * @param post
	 */
	public static void sendByPostMethod(PostMethod post) {
		try {
			HttpClient client = new HttpClient();
			int status = client.executeMethod(post);
			if (status == 200) {
				Logger.getLogger(HttpClientUtil.class).info("上传成功");
				// 输出响应信息
				Logger.getLogger(HttpClientUtil.class).info(post.getResponseBodyAsString());
			} else {
				Logger.getLogger(HttpClientUtil.class).info("上传失败");
			}
		} catch (HttpException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

2.携带参数（以上传文件为例）

2.1 HttpClientUtil类：

/**
	 * @param file
	 * @param url
	 */
	public static void uploadFileByPostMethod(File file, String url) {
		try {
			PostMethod post = postMethod(url);
			/*
			 * 可以添加多个类型，携带多个参数
			 * StringPart
			 * FilePart
			 */
			Part[] parts = {
				new FilePart("file", file)
			};
			MultipartRequestEntity entity = new MultipartRequestEntity(parts, post.getParams());
			/*
			 * entity类型
			 * ByteArrayRequestEntity
			 * InputStreamRequestEntity
			 * MultipartRequestEntity
			 * StringRequestEntity
			 */
			post.setRequestEntity(entity);
			sendByPostMethod(post);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
	}

2.2 接收请求接口

@RestController
@RequestMapping("/httpClientController")
public class HttpClientController {

	@RequestMapping(params = "uploadFile")
	public void uploadFile(@RequestParam CommonsMultipartFile file) {
		File serverFile = new File("E:/to/" + file.getOriginalFilename());
		try {
			FileUtils.writeByteArrayToFile(serverFile, file.getBytes());
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

2.3测试类

@Test
	public void uploadFileByPostMethod() {
		String url = PropUtil.configProp.getProperty("url") + "/httpClientController.do?uploadFile";
		File file = new File("E:/from/test");
		HttpClientUtil.uploadFileByPostMethod(file, url);
	}

3.测试文件

内容：