HttpUtils 无参数调用另外项目接口

package com.timespark.util;

import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;

import java.io.IOException;
import java.net.URL;


public class HTTPUtils {

	private final static Logger logger = Logger.getLogger(HTTPUtils.class);

	private final static String OPERATER_NAME = "【HTTP操作】";

	private final static int SUCCESS = 200;

	private final static String UTF8 = "UTF-8";

	private HttpClient client;

	private static HTTPUtils instance = new HTTPUtils();

	/**
	 * 私有化构造器
	 */
	private HTTPUtils() {

		HttpConnectionManager httpConnectionManager = new MultiThreadedHttpConnectionManager();
		HttpConnectionManagerParams params = httpConnectionManager.getParams();
		params.setConnectionTimeout(15000);
		params.setSoTimeout(25000);
		params.setDefaultMaxConnectionsPerHost(1000);
		params.setMaxTotalConnections(1000);
		client = new HttpClient(httpConnectionManager);
		client.getParams().setContentCharset(UTF8);
		client.getParams().setHttpElementCharset(UTF8);
	}

	/**
	 * get请求
	 */
	public static String get(URL url) {
		return instance.doGet(url,UTF8);
	}
	public static String get(URL url,String codeMa) {
		return instance.doGet(url,codeMa);
	}

	private String doGet(URL url,String codeMa) {
		long beginTime = System.currentTimeMillis();
		String respStr = StringUtils.EMPTY;
		try {
			logger.debug(OPERATER_NAME + "开始get通信，目标host:" + url);
			HttpMethod method = new GetMethod(url.toString());
			
			// 中文转码
			method.getParams().setContentCharset(codeMa);
			try {
				client.executeMethod(method);
			} catch (HttpException e) {

				logger.error(new StringBuffer("发送HTTP GET给\r\n").append(url).append("\r\nHTTP异常\r\n"), e);
			} catch (IOException e) {

				logger.error(new StringBuffer("发送HTTP GET给\r\n").append(url).append("\r\nIO异常\r\n"), e);
			}
			if (method.getStatusCode() == SUCCESS) {
				respStr = method.getResponseBodyAsString();
			}
			// 释放连接
			method.releaseConnection();

			logger.debug(OPERATER_NAME + "通讯完成，返回码：" + method.getStatusCode());
			logger.debug(OPERATER_NAME + "返回内容：" + method.getResponseBodyAsString());
			logger.debug(OPERATER_NAME + "结束..返回结果:" + respStr);
		} catch (Exception e) {
			logger.info(OPERATER_NAME, e);
		}
		long endTime = System.currentTimeMillis();
		logger.debug(OPERATER_NAME + "共计耗时:" + (endTime - beginTime) + "ms");

		return respStr;
	}

	/**
	 * POST请求
	 */
	public static String post(URL url ) {
		return instance.doPost(url);
	}

	private String doPost(URL url) {
		long beginTime = System.currentTimeMillis();
		String respStr = StringUtils.EMPTY;
		try {
			logger.info(OPERATER_NAME + "开始post通信，目标host:" + url.toString());

			PostMethod post = new PostMethod(url.toString());
			//RequestEntity requestEntity = new StringRequestEntity(content, "application/json;charse=UTF-8", UTF8);
			//post.setRequestEntity(requestEntity);
			// 设置格式
			post.getParams().setContentCharset(UTF8);

			client.executeMethod(post);
			if (post.getStatusCode() == SUCCESS) {
				respStr = post.getResponseBodyAsString();
			}else{
				System.out.println("error: " +post.getResponseBodyAsString());
			}

			logger.info(OPERATER_NAME + "通讯完成，返回码：" + post.getStatusCode());
			logger.info(OPERATER_NAME + "返回内容：" + post.getResponseBodyAsString());
			logger.info(OPERATER_NAME + "结束..返回结果:" + respStr);
			post.releaseConnection();

		} catch (Exception e) {
			logger.error(OPERATER_NAME, e);
		}
		long endTime = System.currentTimeMillis();
		logger.info(OPERATER_NAME + "共计耗时:" + (endTime - beginTime) + "ms");
		return respStr;
	}

}