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package com.inks.hb.authinfo.controller;
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//11111
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import com.google.gson.Gson;
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import com.inks.hb.authinfo.pojo.AuthInfo;
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import com.inks.hb.authinfo.service.AuthService;
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import com.inks.hb.authinfo.service.AuthServiceImpl;
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import com.inks.hb.common.PojotoGson;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.sql.SQLException;
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import java.util.ArrayList;
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/**
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* 分页查询权限表的Servlet
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* 如果查询过程中出现异常，则统一返回'数据查询出现异常'
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* 返回的数据类型为PojotoGson
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*/
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@WebServlet(value = "/AuthInfoServlet", name = "AuthInfoServlet")
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public class AuthInfoServlet extends HttpServlet {
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// 重写doPost方法，调用doGet方法以处理POST请求
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
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this.doGet(request, response);
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}
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// 重写doGet方法，处理GET请求
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
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// 设置请求和响应的字符编码
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request.setCharacterEncoding("utf-8");
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response.setContentType("text/html;charset=utf-8");
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// 获取响应输出流
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PrintWriter out = response.getWriter();
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// 从请求中获取分页参数和操作类型
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int page = Integer.parseInt(request.getParameter("page")); // 当前页码
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int limit = Integer.parseInt(request.getParameter("limit")); // 每页的数据量
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int make = Integer.parseInt(request.getParameter("make")); // 操作类型
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// 创建AuthService实例
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AuthService service = new AuthServiceImpl();
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// 初始化返回信息
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String code = "0"; // 状态码，默认为0表示成功
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String msg = "数据查询正常"; // 状态信息，默认为正常
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String count = ""; // 数据总数，初始化为空字符串
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ArrayList<AuthInfo> list = new ArrayList<>(); // 数据内容列表
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// 声明单个全局属性
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int authId; // 权限ID
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String authItem = ""; // 权限名称
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String isRead; // 可读
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String isWrite; // 可写
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String isChange; // 可改
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String isDelete; // 可删
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AuthInfo authInfo = null; // AuthInfo对象
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try {
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// 根据操作类型执行不同的逻辑
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if (make == 2) {
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// 修改权限信息
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authId = Integer.parseInt(request.getParameter("authId"));
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authItem = request.getParameter("authItem");
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isRead = request.getParameter("isRead");
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isWrite = request.getParameter("isWrite");
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isChange = request.getParameter("isChange");
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isDelete = request.getParameter("isDelete");
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authInfo = new AuthInfo(authId, authItem, isRead, isWrite, isChange, isDelete);
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service.updateAuthInfo(authInfo); // 更新权限信息
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} else if (make == 3) {
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// 搜索权限信息
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authItem = request.getParameter("authItem");
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authInfo = service.query(authItem); // 查询权限信息
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list.clear(); // 清空列表
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list.add(authInfo); // 添加查询结果到列表
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}
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// 根据操作类型获取数据
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if (make != 3) {
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list = service.query(page, limit); // 分页查询权限信息
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count = String.valueOf(service.queryAuthInfoNum()); // 获取权限信息总数
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} else {
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// 如果搜索结果为空，则设置count为0，否则为1
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count = (authInfo.getAuthId() == 0) ? "0" : "1";
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}
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} catch (SQLException e) {
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// 捕获到SQLException异常，设置错误状态码和信息
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code = "1";
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msg = "数据查询出现异常";
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e.printStackTrace(); // 打印异常堆栈信息
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} finally {
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// 创建PojotoGson对象并序列化为JSON字符串
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PojotoGson pojotoGson = new PojotoGson(code, msg, count, list);
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Gson gson = new Gson();
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out.print(gson.toJson(pojotoGson)); // 输出JSON字符串
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}
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}
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}
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