java http get和post请求

1.http工具类

package com.funshion.common.utils;

import java.net.URI;
import java.net.URL;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * http工具类
 *
 * @author qiuwy
 *
 */
@SuppressWarnings({ "deprecation", "resource" })
public class HttpUtil {
    private static Logger logger = LoggerFactory.getLogger(HttpUtil.class);

/**
     * get
     *
     * @param url
     * @return
     * @throws Exception
     */
    public static HttpResVo doGet(String getUrl) throws Exception {
        URL url = new URL(getUrl);
        URI uri = new URI(url.getProtocol(), null, url.getHost(), url.getPort(), url.getPath(), url.getQuery(), null);
        HttpClient httpclient = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(uri);
        HttpResponse response = httpclient.execute(httpGet);

int httpCode = response.getStatusLine().getStatusCode();
        String result = EntityUtils.toString(response.getEntity());

logger.info("Get.url=" + uri + ",response code=" + httpCode + ",response entity=" + result);

return new HttpResVo(httpCode, result);
    }

/**
     * post
     *
     * @param url
     * @param params
     * @return 返回http code
     *
     */
    public static HttpResVo doPost(String url, String params) throws Exception {
        URL postUrl = new URL(url);
        URI uri = new URI(postUrl.getProtocol(), null, postUrl.getHost(), postUrl.getPort(), postUrl.getPath(), postUrl.getQuery(), null);
        
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(uri);
        
        StringEntity entity = new StringEntity(params, HTTP.UTF_8);
        entity.setContentType("application/json;charset=UTF-8");
        httpPost.setHeader("Accept", "application/json");
        httpPost.setEntity(entity);

HttpResponse response = httpclient.execute(httpPost);
        int httpCode = response.getStatusLine().getStatusCode();
        String result = EntityUtils.toString(response.getEntity());
        
        logger.info("Post.url=" + uri + ",response code=" + httpCode + ",response entity=" + result);
        
        return new HttpResVo(httpCode, result);

}

/**
     * 根据参数和url访问远程，得到返回值
     *
     * @return
     */
    protected HttpResVo getHttpResult(String url,String method,String parameter) throws Exception {
        if (StringUtils.isEmpty(method)) {
            logger.error("method is null.");
            return null;
        }

// get方法的处理
        if (method.equalsIgnoreCase(GET)) {
            StringBuffer _url = new StringBuffer(url);
            if (!StringUtils.isEmpty(parameter)) {
                _url.append("?").append(parameter);
                System.out.println(_url.toString());
            }
            return HttpUtil.doGet(_url.toString());
        } else {// post方法处理
            if (!StringUtils.isEmpty(parameter)) {

return HttpUtil.doPost(url, parameter);
            }
            logger.error("post method has parameter none.");
        }
        return null;
    }

}

2.http响应返回值

package com.funshion.common.utils;

/**
 * http响应返回值
 *
 * @author qiuwy
 *
 */
public class HttpResVo implements java.io.Serializable {

private int httpCode;
    private String result;

public HttpResVo() {

}

public HttpResVo(int httpCode, String result) {
        this.httpCode = httpCode;
        this.result = result;
    }

public int getHttpCode() {
        return httpCode;
    }

public void setHttpCode(int httpCode) {
        this.httpCode = httpCode;
    }

public String getResult() {
        return result;
    }

public void setResult(String result) {
        this.result = result;
    }

}