[HttpClient]传递参数

package com.jerry.httpclient;

import java.io.UnsupportedEncodingException;

import java.util.ArrayList;

import java.util.List;

import org.apache.http.HttpEntity;

import org.apache.http.NameValuePair;

import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.client.methods.CloseableHttpResponse;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.impl.client.CloseableHttpClient;

import org.apache.http.impl.client.HttpClients;

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.util.EntityUtils;

/**

 *

 * @author Jerry

 * @date 2015年2月11日 下午11:44:46

 */

public class ParameterDemo {

    public static void main(String[] args) {

        CloseableHttpClient client = HttpClients.createDefault();

        HttpPost httpPost = new HttpPost("http://localhost:8080/services/query");

        List<NameValuePair> params = new ArrayList<>();

        params.add(new BasicNameValuePair("word", "女神"));

        try {

            httpPost.setEntity(new UrlEncodedFormEntity(params, "utf-8"));

            CloseableHttpResponse response = client.execute(httpPost);

            System.out.println(response.getStatusLine());

            HttpEntity entity = response.getEntity();

            System.out.println(EntityUtils.toString(entity));

            EntityUtils.consume(entity);

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

}

package com.jerry.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

 *

 * @author Jerry

 * @date 2015年2月11日 下午11:31:16

 */

public class DictionaryServlet extends HttpServlet{

    /**

     *

     */

    private static final long serialVersionUID = 1L;

    @Override

    protected void doGet(HttpServletRequest req, HttpServletResponse resp)

            throws ServletException, IOException {

        // TODO Auto-generated method stub

        req.setCharacterEncoding("utf-8");

        resp.setCharacterEncoding("utf-8");

        PrintWriter out = resp.getWriter();

        String chineseWord = req.getParameter("word");

        String englishWord = translate(chineseWord);

        out.write(englishWord);

    }

    private String translate(String chineseWord) {

        // TODO Auto-generated method stub

        String result = "";

        if ("女神".equals(chineseWord)) {

            result = "goddness";

        } else if ("屌丝".equals(chineseWord)) {

            result = "loser";

        } else {

            result = "查无此单词";

        }

        return result;

    }

    @Override

    protected void doPost(HttpServletRequest req, HttpServletResponse resp)

            throws ServletException, IOException {

        // TODO Auto-generated method stub

        doGet(req, resp);

    }

}