我的HttpClients工具

import java.io.IOException;

import javax.ws.rs.core.MediaType;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.PutMethod;
import org.apache.commons.httpclient.methods.RequestEntity;
import org.apache.commons.httpclient.methods.StringRequestEntity;

/**
 * 
 * @author Administrator
 *
 */
public class RestClientUtils {

    /**
     * 发送POST请求
     * @param url
     * @param object
     */
    public static String post(String uri, Object content) {
        
        String sendContent = content.toString();
        String result = null;
        PostMethod postMethod = null;
        HttpClient httpClient = null;
        try {
            postMethod = new PostMethod(uri);
            httpClient = new HttpClient();
            RequestEntity entity = new StringRequestEntity(sendContent,
                    MediaType.APPLICATION_JSON + ";charset=UTF-8", null);//解决中文乱码问题的方法
            postMethod.addRequestHeader("Accept", MediaType.APPLICATION_JSON
                    + ";charset=UTF-8");
            postMethod.setRequestEntity(entity);
            int statusCode = httpClient.executeMethod(postMethod);
            //如果相应成功
            if (statusCode != HttpStatus.SC_OK) {
                System.err.println(" Method failed:  "
                        + postMethod.getStatusLine());
                return "failed";
            }
            byte[] responseBody = postMethod.getResponseBody();
            result = new String(responseBody, "utf-8");
            System.err.println("===================发送POST格式数据请求==================");
            System.err.println("返回状态："+statusCode);
            System.err.println("返回结果:");
            System.err.println(result);
            System.err.println("==============================================");
        } catch (HttpException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 释放连接
            if (postMethod != null) {
                postMethod.releaseConnection();
            }
        }
        return result;
    
    }
    
    /**
     * 发送GET请求
     * @return
     */
    public static String get(String uri) {
        HttpClient httpclient = new HttpClient();
        GetMethod getMethod = new GetMethod(uri);
        String result = "";
        int statusCode = 0;
        try {
            statusCode = httpclient.executeMethod(getMethod);
            result = getMethod.getResponseBodyAsString();
            System.err.println("===================发送GET请求==================");
            System.err.println("返回状态："+statusCode);
            System.err.println("返回结果:");
            System.err.println(result);
            System.err.println("==============================================");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            // 释放连接
            if (getMethod != null) {
                getMethod.releaseConnection();
            }
        }
        
        return result;
    }
    
    /**
     * 发送PUT请求
     * @param uri
     * @param content
     * @return
     */
    public static String put(String uri, Object content) {
        String sendContent = content.toString();
        HttpClient httpclient = new HttpClient();
        PutMethod putMethod = new PutMethod(uri);
        String result = "";
        try {
            
            RequestEntity entity = new StringRequestEntity(sendContent,
                    MediaType.APPLICATION_JSON + ";charset=UTF-8", null);//解决中文乱码问题的方法
            putMethod.addRequestHeader("Accept", MediaType.APPLICATION_JSON
                    + ";charset=UTF-8");
            putMethod.setRequestEntity(entity);
            int statusCode = httpclient.executeMethod(putMethod);
            byte[] responseBody = putMethod.getResponseBody();
            result = new String(responseBody, "utf-8");
            System.err.println("===================发送PUT请求==================");
            System.err.println("返回状态："+statusCode);
            System.err.println("返回结果:");
            System.err.println(result);
            System.err.println("==============================================");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 释放连接
            if (null != putMethod) {
                putMethod.releaseConnection();
            }
        }
        return result;
    }
}