调取第三方接口的post及get方法_获取第三方系统 get请求参数-优快云博客

该代码段展示了如何使用Java发送POST和GET请求到server端并处理返回的响应。主要涉及URL连接、设置请求头、处理编码问题以及读取响应内容。在POST请求中，将参数写入输出流；在GET请求中，通过URL直接传递参数。

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/**
	 * 向server端发送请求，并获取返回参数
	 * 
	 * @param actionUrl
	 * @param method
	 * @param param
	 * @return
	 */
	public static String sendPostRequest(String serverUrl, String param) {
		logger.debug("+++++++++++++++sendPostRequest方法开始!+++++++++++++++++++");
		StringBuffer sb = new StringBuffer();
		String output = "";
		try {
			URL url = new URL(serverUrl);
			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
			conn.setDoOutput(true);
			conn.setRequestMethod("POST");
			conn.setRequestProperty("Charset", "utf-8");
			conn.setRequestProperty("Content-Type", "application/json");
			
			//解决乱码代码
			conn.setRequestProperty("Accept-Charset", "utf-8");
			conn.setRequestProperty("contentType", "utf-8");
			
			if (param != null) {
				OutputStream os = conn.getOutputStream();
				os.write(param.getBytes("utf-8"));
				os.flush();
			}
			BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
			while ((output = br.readLine()) != null) {
				sb.append(output);
			}
			conn.disconnect();
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		return String.valueOf(sb);
	}
	
	/**
	 * 向server端发送请求，并获取返回参数
	 * 
	 * @param actionUrl
	 * @param method
	 * @param param
	 * @return
	 * @throws UnsupportedEncodingException 
	 */
	public static  String sendGetRequest(String targetURL) throws UnsupportedEncodingException{
		logger.debug("+++++++++++++++sendGetRequest方法开始!+++++++++++++++++++");
		String output = "";
		String outStr = "";
		try {
			URL restServiceURL = new URL(targetURL);
			HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL.openConnection();
			httpConnection.setRequestMethod("GET");
			httpConnection.setRequestProperty("Charset", "utf-8");
			httpConnection.setRequestProperty("Content-Type", "application/json");
			
			//解决乱码代码
			httpConnection.setRequestProperty("Accept-Charset", "utf-8");
			httpConnection.setRequestProperty("Accept-Encoding", "utf-8");
			
			if (httpConnection.getResponseCode() != 200) {
				throw new RuntimeException("HTTP GET Request Failed with Error code : " + httpConnection.getResponseCode());
			}
			BufferedReader responseBuffer = new BufferedReader(new InputStreamReader(httpConnection.getInputStream(), "utf-8"));
			while ((output = responseBuffer.readLine()) != null) {
				outStr = outStr + output;
			}
			httpConnection.disconnect();
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			logger.error("io Exception:see code");
			e.printStackTrace();
		}
		return outStr;
	}