http發送json格式數據請求 demo示例

http發送json格式數據請求 demo示例 

import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
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 java.io.IOException;
import java.nio.charset.Charset;

/**
 * Created by admin on 2016/8/3.
 */
public class JsonHttpClient {
    // 接口地址
    private static String apiURL = "http://localhost:8080/...";
    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 JsonHttpClient(String url) {

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

        }
    }

    /**
     * 調用 API
     *
     * @param parameters
     * @return
     */
    public String post(String parameters) {
        String body = null;
        if (method != null & parameters != null
                && !"".equals(parameters.trim())) {
            try {

                // 建立一個NameValuePair數組，用於存儲欲傳送的參數
                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();


                if (statusCode != HttpStatus.SC_OK) {
                    status = 1;
                }
                // Read the response body
                body = EntityUtils.toString(response.getEntity());

            } catch (IOException e) {
                // 網絡錯誤
                status = 3;
            }

        }
        return body;
    }

    public static void main(String[] args) {
        JsonHttpClient ac = new JsonHttpClient(apiURL);
        //創建參數列表
        JsonArray array = new JsonArray();
        JsonObject object = new JsonObject();
        object.addProperty("aa","123");
        object.addProperty("bb","218");
        
        array.add(object);
        JsonObject object1 = new JsonObject();
        object1.addProperty("aa","456");
        object1.addProperty("bb","2.2");
       
        array.add(object1);

        JsonObject res = new JsonObject();
        res.addProperty("list",array.toString());
        res.addProperty("mm","mmVal");
        System.out.println(ac.post(res.toString()));
    }

    /**
     * 0.成功 1.執行方法失敗 2.協議錯誤 3.網絡錯誤
     *
     * @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;
    }

}