HttpClient通过Post方式发送Json数据

转载：http://blog.csdn.net/majian_1987/article/details/47728769

服务器用的是Springmvc，接口内容：

@ResponseBody
@RequestMapping(value="/order",method=RequestMethod.POST)
public boolean order(HttpServletRequest request,@RequestBody List<Order> orders) throws Exception {
    AdmPost admPost = SessionUtil.getCurrentAdmPost(request);
    if(admPost == null){
        throw new RuntimeException("[OrderController-saveOrUpdate()] 当前登陆的用户职务信息不能为空！");
    }
    try {
        this.orderService.saveOrderList(orders,admPost);
        Loggers.log("订单管理",admPost.getId(),"导入",new Date(),"导入订单成功,订单信息--> " + GsonUtil.toString(orders, new TypeToken<List<Order>>() {}.getType()));
        return true;
    } catch (Exception e) {
        e.printStackTrace();
        Loggers.log("订单管理",admPost.getId(),"导入",new Date(),"导入订单失败,订单信息--> " + GsonUtil.toString(orders, new TypeToken<List<Order>>() {}.getType()));
        return false;
    }
}

通过ajax访问的时候，代码如下：

                  $.ajax({
    type : "POST",
    contentType : "application/json; charset=utf-8",
    url : ctx + "order/saveOrUpdate",
    dataType : "json",
    anysc : false,
    data : {orders:[{orderId:"11",createTimeOrder:"2015-08-11"}]},  // Post 方式，data参数不能为空""，如果不传参数，也要写成"{}"，否则contentType将不能附加在Request Headers中。
    success : function(data){
        if (data != undefined && $.parseJSON(data) == true){
            $.messager.show({
                title:'提示信息',
                msg:'保存成功！',
                timeout:5000,
                showType:'slide'
            });
        }else{
            $.messager.alert('提示信息','保存失败!','error');
        }
    },
    error : function(XMLHttpRequest, textStatus, errorThrown) {
        alert(errorThrown + ':' + textStatus); // 错误处理
    }
});

通过HttpClient方式访问，代码如下：

package com.ec.spring.test;

import java.io.IOException;
import java.nio.charset.Charset;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import com.google.gson.JsonArray;
import com.google.gson.JsonObject;

public class APIHttpClient {

    // 接口地址
    private static String apiURL = "http://192.168.3.67:8080/lkgst_manager/order/order";
    private Log logger = LogFactory.getLog(this.getClass());
    private static final String pattern = "yyyy-MM-dd HH:mm:ss:SSS";
    private HttpClient httpClient = null;
    private HttpPost method = null;
    private long startTime = 0L;
    private long endTime = 0L;
    private int status = 0;

    /**
     * 接口地址
     *
     * @param url
     */
    public APIHttpClient(String url) {

        if (url != null) {
            this.apiURL = url;
        }
        if (apiURL != null) {
            httpClient = new DefaultHttpClient();
            method = new HttpPost(apiURL);

        }
    }

    /**
     * 调用 API
     *
     * @param parameters
     * @return
     */
    public String post(String parameters) {
        String body = null;
        logger.info("parameters:" + parameters);

        if (method != null & parameters != null
                && !"".equals(parameters.trim())) {
            try {

                // 建立一个NameValuePair数组，用于存储欲传送的参数
                method.addHeader("Content-type","application/json; charset=utf-8");
                method.setHeader("Accept", "application/json");
                method.setEntity(new StringEntity(parameters, Charset.forName("UTF-8")));
                startTime = System.currentTimeMillis();

                HttpResponse response = httpClient.execute(method);

                endTime = System.currentTimeMillis();
                int statusCode = response.getStatusLine().getStatusCode();

                logger.info("statusCode:" + statusCode);
                logger.info("调用API 花费时间(单位：毫秒)：" + (endTime - startTime));
                if (statusCode != HttpStatus.SC_OK) {
                    logger.error("Method failed:" + response.getStatusLine());
                    status = 1;
                }

                // Read the response body
                body = EntityUtils.toString(response.getEntity());

            } catch (IOException e) {
                // 网络错误
                status = 3;
            } finally {
                logger.info("调用接口状态：" + status);
            }

        }
        return body;
    }

    public static void main(String[] args) {
        APIHttpClient ac = new APIHttpClient(apiURL);
        JsonArray arry = new JsonArray();
        JsonObject j = new JsonObject();
        j.addProperty("orderId", "中文");
        j.addProperty("createTimeOrder", "2015-08-11");
        arry.add(j);
        System.out.println(ac.post(arry.toString()));
    }

    /**
     * 0.成功 1.执行方法失败 2.协议错误 3.网络错误
     *
     * @return the status
     */
    public int getStatus() {
        return status;
    }

    /**
     * @param status
     *            the status to set
     */
    public void setStatus(int status) {
        this.status = status;
    }

    /**
     * @return the startTime
     */
    public long getStartTime() {
        return startTime;
    }

    /**
     * @return the endTime
     */
    public long getEndTime() {
        return endTime;
    }
}