httpPost请求，application/json格式

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import net.sf.json.JSONObject;import org.apache.http.HttpResponse;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;/** * httpPost请求，application/json格式 * @author lina * @date   2017-8-22 上午11:03:24 */public class HttpRequest {    public static void main(String[] args) throws Exception{        DefaultHttpClient httpClient = new DefaultHttpClient();        String url = "http://192.168.13.154:8080/test/createToken";        HttpPost httpPost = new HttpPost(url);        // 设置请求的header        httpPost.addHeader("Content-Type", "application/json;charset=utf-8");        // 设置请求的参数        JSONObject jsonParam = new JSONObject();        jsonParam.put("参数", "参数值");                StringEntity entity = new StringEntity(jsonParam.toString(), "utf-8");        entity.setContentEncoding("UTF-8");        entity.setContentType("application/json");        httpPost.setEntity(entity);        // 执行请求        HttpResponse response = httpClient.execute(httpPost);        String json2 = EntityUtils.toString(response.getEntity(), "utf-8");JSONObject jsonObject = JSONObject.fromObject(json2);        // 打印执行结果        System.out.println(jsonObject);    }}

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