package wk.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.alibaba.fastjson.JSON;
import wk.model.UserBean;
import wk.util.DBTool;

public class UserJsonServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request, response);
	}

	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		 //请求发送都是utf-8 
		 request.setCharacterEncoding("UTF-8");
         response.setCharacterEncoding("UTF-8");
         
		List<UserBean> list = new ArrayList<UserBean>();
		DBTool dbt = new DBTool();
		PreparedStatement pstmt = null;
		Connection conn = null;
		ResultSet rs = null;
		String json = null;
		try {
			conn = dbt.getConnection();
			String sql = "SELECT id,name,sex,age,tell,address FROM testexcel";
			pstmt = conn.prepareStatement(sql);
			rs = pstmt.executeQuery();
			while (rs.next()) {
				UserBean ub = new UserBean();
				ub.setId(rs.getInt("id"));
				ub.setName(rs.getString("name"));
				ub.setSex(rs.getString("sex"));
				ub.setAge(rs.getInt("age"));
				ub.setTell(rs.getInt("tell"));
				ub.setAddress(rs.getString("address"));
				list.add(ub);
			}

			json = JSON.toJSONString(list);
			response.setCharacterEncoding("UTF-8");
			response.getWriter().write(json);
			
		} catch (SQLException e) {
			e.printStackTrace();
		}
	}

}