Json変換

7523 ワード
Java-Web
次に、テキスト回転json、配列回転json、listリスト回転json、setリスト回転json、mapテーブル回転json、javaBean装換jsonについて説明します.
package Web;

import java.io.IOException;
import java.io.PrintWriter;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.collections.map.HashedMap;

import Bean.StudentBean;
import net.sf.json.JSONArray;
import net.sf.json.JsonConfig;

/**
 * Servlet implementation class JsonServlet
 */
@WebServlet("/JsonServlet")
public class JsonServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public JsonServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        /*response.getWriter().append("Served at: ").append(request.getContextPath());*/

        response.setContentType("text/html;charset=utf-8");
        request.setCharacterEncoding("utf-8");
        PrintWriter out = response.getWriter();

        //        JSON
        out.println("{\"id\":1,\"name\":  ,\"pwd\":1234aa}");

        //     json
        String []num = {"123","  ","ahjdgf"};
        JSONArray StrNum = JSONArray.fromObject(num);
        out.println("
");
        out.println(StrNum);

        //list     json   
        List strJson = new ArrayList();
        strJson.add("  ");
        strJson.add("1");
        strJson.add("fdg");
        JSONArray Num = JSONArray.fromObject(strJson);
        out.println("
");
        out.println(Num);

        //set     json   
        Set setJson = new HashSet<>();
        setJson.add(true);
        setJson.add(22);
        setJson.add("  ");
        setJson.add(34.467);
        JSONArray setNum = JSONArray.fromObject(setJson);
        out.println("
");
        out.println(setNum);

        //map    json
        Map mapJson = new HashMap();
        mapJson.put("id", "11");
        mapJson.put("age", 22);
        mapJson.put("Address","  ");
        JSONArray MapNum = JSONArray.fromObject(mapJson);
        out.println("
");
        out.println(MapNum);

        // javaBean   json
        StudentBean bean = new StudentBean();
        bean.setId("123");
        bean.setName("  ");
        bean.setAge(22);
        bean.setBirthday(new Date());
        JSONArray BeanNum = JSONArray.fromObject(bean);
        out.println("
");
        out.println(BeanNum);
        //javaBean          drithday
        JsonConfig config = new JsonConfig();
        config.setExcludes(new String[]{"birthday"});
        JSONArray conJson = JSONArray.fromObject(BeanNum, config);
        out.println("
");
        out.println(conJson);
        //          (map             )
        mapJson.put("student", conJson);
        JSONArray Json = JSONArray.fromObject(mapJson);
        out.println("
");
        out.println(Json);

    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }
}
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