Http接口发送请求（json,url）

Http接口发送请求

public static String appFun(String jsonParam, String url) {

		PrintWriter out = null;
		BufferedReader in = null;
		OutputStreamWriter outs1 = null;
		String result = "";
		int code = 0;
		try {
			URL realUrl = new URL(url);
			HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();

			conn.setRequestProperty("Content-Type", "application/json");
			conn.setRequestMethod("POST");
			
			// 设置鉴权信息：Authorization: Basic MESCONN:Chit2012
            //con.setRequestProperty("Authorization", "Basic TUVTQ09OTiUzQUNoaXQyMDEy");
	        String userPassword = "MESCONN" + ":" + "Chit2012";
			
			
			String encodingUserPass = new sun.misc.BASE64Encoder().encode(userPassword.getBytes());
		    conn.setRequestProperty("Authorization", "Basic "+encodingUserPass);
			
	        
          
			// 设置通用的请求属性
			conn.setRequestProperty("accept", "*/*");
			conn.setRequestProperty("connection", "Keep-Alive");
			conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
			conn.setRequestProperty("Content-Type", "application/json");
			// 设置是否向httpUrlConnection输出，设置是否从httpUrlConnection读入，此外发送post请求必须设置这两个最常用的Http请求无非是get和post，get请求可以获取静态页面，也可以把参数放在URL字串后面，传递给servlet，post与get的
			// 不同之处在于post的参数不是放在URL字串里面，而是放在http请求的正文内。
			// 此处为post请求 故设为true 默认为 false
			conn.setDoOutput(true);
			conn.setDoInput(true);
			outs1 = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
			out = new PrintWriter(conn.getOutputStream());
			// 发送请求参数即数据
			outs1.write(jsonParam);
			// 缓冲数据
			outs1.flush();
			code = conn.getResponseCode();
			InputStream is = null;

			outs1.write(jsonParam);
			outs1.flush();
			is = conn.getInputStream();

			// 构造一个字符流缓存
			BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
			String str = "";
			while ((str = br.readLine()) != null) {
				is.close();
				// 断开连接，最好写上，disconnect是在底层tcp
				// socket链接空闲时才切断。如果正在被其他线程使用就不切断。固定多线程的话，如果不disconnect，链接会增多，直到收发不出信息。写上disconnect后正常一些。
				conn.disconnect();
				result = str;
			}

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (out != null) {
					out.close();
				}
				if (in != null) {
					in.close();
				}
				if (outs1 != null) {
					outs1.close();
				}
			} catch (IOException ex) {
				ex.printStackTrace();
			}
		}
		return result;

	}