当年的java考试：Java景区预约登记管理系统(maven整合servlet)
maven整合servlet的过程以及使用mybatis框架进行CRUD操作
需求效果：
1、搭建maven整合servlet（10分）
2、mybatis各种配置（创建数据库）（10分）
3、完成各层编码与联系（30分）
4、在DAO层进行编码测试（0分）
5、在servlet层创建查询GetInfo、添加AddInfo、修改SelectById,UpdateById,删除DeleteById（30分）
6、完成视图层编码，GetInfo.jsp,AddInfo.jsp（10分）
7、（编码规范与异常处理）（10分）
8、提交项目（提交正确计分，否则0分）
环境：
开发工具：【IntelliJ IDEA 2020.1.3 x64】
mysql版本：【5.6.x】
mysql工具：【Navicat Premium 15】
完成步骤以及编码：
目录
maven整合servlet的过程以及使用mybatis框架进行CRUD操作
需求效果：
环境：
完成步骤以及编码：
编辑
添加各层的包
添加【tomcat】
添加Tomcat包
创建【com.item.servlet】下【GetInfoServlet.java】测试servlet接口
刷新【maven】才会出现【Create New Servlet】
编辑
添加mybatis对应maven包
在src/main/的resources内创建【mybatis-config.xml】文件
根据【com/item/mapper/TbTourinfoMapper.xml】在【resources】下创建包与配置文件
编码内容如下，包含【查询】【筛选查询】【添加】【删除】【修改】
在【resources】下创建【log4j.properties】文件
创建【com.item.model】内【TbTourinfo】文件
在【com.item.mapper】下创建【TbTourinfoMapper】
在【com.item.common】下创建JDBC用于获取数据库连接池链接
在【com.item.dao】下创建【TbTourinfoDAO.java】文件
在【com.item.servlet】下以此创建
【GetInfoServlet】
【SelectByNameSexTypeServlet】
【AddInfoServlet】
【DeleteByIdServlet】
【UpdateByIdServlet】
在【webapp】下创建
【GetInfo.jsp】
【AddInfo.jsp】
添加各层的包
添加【tomcat】
Tomcat添加项目成功
添加Tomcat包
创建【com.item.servlet】下【GetInfoServlet.java】测试servlet接口
刷新【maven】才会出现【Create New Servlet】
package com.item.servlet;
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 java.io.IOException;
@WebServlet("/GetInfo")
public class GetInfoServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("访问测试");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request,response);
}
}访问成功
添加mybatis对应maven包
org.mybatis
mybatis
3.5.1
org.slf4j
slf4j-log4j12
1.7.10
mysql
mysql-connector-java
5.1.6
在src/main/的resources内创建【mybatis-config.xml】文件
配置头部：
添加图下配置编码：
根据【com/item/mapper/TbTourinfoMapper.xml】在【resources】下创建包与配置文件
编码内容如下，包含【查询】【筛选查询】【添加】【删除】【修改】
insert into tb_tourinfo values
(
0,
"${name}",
"${sex}",
"${id_no}",
#{age},
#{type},
NOW(),
#{visit_state},
now()
);
delete from tb_tourinfo where id=#{id}
update tb_tourinfo set visit_state=#{visit_state} where id=#{id}
在【resources】下创建【log4j.properties】文件
#全局配置
log4j.rootLogger=debug,stdout,ERROR
#MyBatis日志配直
log4j.logger.com.item.mapper=TRACE
#控制台输出配置
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
创建【com.item.model】内【TbTourinfo】文件
需要添加数据表对应的【属性】，并添加【Getter】与【Setter】以及【toString】方法。
package com.item.model;
import java.util.Date;
public class TbTourinfo {
private int id;
private String name;
private String sex;
private String id_no;
private int age;
private String type;
private Date visit_date;
private int visit_state;
private Date register_time;
@Override
public String toString() {
return "TbTourinfo{" +
"id=" + id +
", name='" + name + '\'' +
", sex='" + sex + '\'' +
", id_no='" + id_no + '\'' +
", age=" + age +
", type='" + type + '\'' +
", visit_date=" + visit_date +
", visit_state=" + visit_state +
", register_time=" + register_time +
'}';
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getId_no() {
return id_no;
}
public void setId_no(String id_no) {
this.id_no = id_no;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Date getVisit_date() {
return visit_date;
}
public void setVisit_date(Date visit_date) {
this.visit_date = visit_date;
}
public int getVisit_state() {
return visit_state;
}
public void setVisit_state(int visit_state) {
this.visit_state = visit_state;
}
public Date getRegister_time() {
return register_time;
}
public void setRegister_time(Date register_time) {
this.register_time = register_time;
}
}
在【com.item.mapper】下创建【TbTourinfoMapper】
package com.item.mapper;
import com.item.model.TbTourinfo;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface TbTourinfoMapper {
List GetInfo();
/**
* 根据参数进行查询
* @param name (姓名)
* @param sex (性别)
* @param type (会员类型)
* @return
*/
List SelectByNameSexType(
@Param("name") String name,
@Param("sex") String sex,
@Param("type") String type
);
int AddInfo(
@Param("name") String name,
@Param("sex") String sex,
@Param("id_no") String id_no,
@Param("age") int age,
@Param("type") int type,
@Param("visit_state") int visit_state
);
int DeleteById(@Param("id") int id);
int UpdateById(@Param("visit_state") int visit_state,
@Param("id") int id);
}
在【com.item.common】下创建JDBC用于获取数据库连接池链接
package com.item.common;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import java.io.IOException;
import java.io.Reader;
public class JDBC {
public static SqlSessionFactory GetConn(){
try {
Reader reader = Resources.getResourceAsReader("mybatis-config.xml");
SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(reader);
return factory;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
System.out.println(GetConn());
}
}
在【com.item.dao】下创建【TbTourinfoDAO.java】文件
package com.item.dao;
import com.item.common.JDBC;
import com.item.mapper.TbTourinfoMapper;
import com.item.model.TbTourinfo;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import java.util.List;
public class TbTourinfoDAO {
/**
* 查询所有
* @return
*/
public static List GetInfo(){
SqlSessionFactory factory = JDBC.GetConn();
SqlSession session = factory.openSession();
TbTourinfoMapper db = session.getMapper(TbTourinfoMapper.class);
List list = db.GetInfo();
session.close();
return list;
}
/**
* 综合信息查询
* @param name
* @param sex
* @param type
* @return
*/
public static List SelectByNameSexType(String name,String sex,String type){
SqlSessionFactory factory = JDBC.GetConn();
SqlSession session = factory.openSession();
TbTourinfoMapper db = session.getMapper(TbTourinfoMapper.class);
List list = db.SelectByNameSexType(name,sex,type);
session.close();
return list;
}
/**
* 添加
* @param name
* @param sex
* @param id_no
* @param age
* @param type
* @param visit_state
* @return
*/
public static boolean AddInfo(String name,String sex,String id_no,int age,int type,int visit_state){
SqlSessionFactory factory = JDBC.GetConn();
SqlSession session = factory.openSession();
TbTourinfoMapper db = session.getMapper(TbTourinfoMapper.class);
int rows = db.AddInfo(name, sex, id_no, age, type, visit_state);
session.commit();
session.close();
return rows>0;
}
/**
* 删除
* @param id
* @return
*/
public static boolean DeleteById(int id){
SqlSessionFactory factory = JDBC.GetConn();
SqlSession session = factory.openSession();
TbTourinfoMapper db = session.getMapper(TbTourinfoMapper.class);
int rows = db.DeleteById(id);
session.commit();
session.close();
return rows>0;
}
/**
* 修改
* @param visit_state
* @param id
* @return
*/
public static boolean UpdateById(int visit_state,int id){
SqlSessionFactory factory = JDBC.GetConn();
SqlSession session = factory.openSession();
TbTourinfoMapper db = session.getMapper(TbTourinfoMapper.class);
int rows = db.UpdateById(visit_state,id);
session.commit();
session.close();
return rows>0;
}
public static void main(String[] args) {
int oldState=1;
System.out.println(UpdateById(oldState==0?1:0,7));
}
}
在【com.item.servlet】下以此创建
【GetInfoServlet】
package com.item.servlet;
import com.item.dao.TbTourinfoDAO;
import com.item.model.TbTourinfo;
import sun.misc.CharacterEncoder;
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 java.io.IOException;
import java.util.List;
/**
* 本类为GetInfo查询所有的类
*/
@WebServlet("/GetInfo")
public class GetInfoServlet extends HttpServlet {
/**
* 这是DOPOST访问接口
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
List list = TbTourinfoDAO.GetInfo();
request.setAttribute("lists",list);
request.getRequestDispatcher("GetInfo.jsp").forward(request,response);
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
【SelectByNameSexTypeServlet】
package com.item.servlet;
import com.item.dao.TbTourinfoDAO;
import com.item.model.TbTourinfo;
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 java.io.IOException;
import java.util.List;
@WebServlet("/SelectByNameSexType")
public class SelectByNameSexTypeServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
String name = request.getParameter("name");
String sex = request.getParameter("sex");
String type = request.getParameter("type");
List list = TbTourinfoDAO.SelectByNameSexType(name==""?null:name, sex==""?null:sex, type==""?null:type);
request.setAttribute("lists",list);
request.getRequestDispatcher("GetInfo.jsp").forward(request,response);
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
【AddInfoServlet】
package com.item.servlet;
import com.item.dao.TbTourinfoDAO;
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 java.io.IOException;
@WebServlet("/AddInfo")
public class AddInfoServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
String name = request.getParameter("name");
String sex = request.getParameter("sex");
String id_no = request.getParameter("id_no");
String age = request.getParameter("age");
String type = request.getParameter("type");
TbTourinfoDAO.AddInfo(name,sex,id_no,Integer.parseInt(age),Integer.parseInt(type),0);
response.sendRedirect("GetInfo");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
【DeleteByIdServlet】
package com.item.servlet;
import com.item.dao.TbTourinfoDAO;
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 java.io.IOException;
@WebServlet("/DeleteById")
public class DeleteByIdServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String id = request.getParameter("id");
TbTourinfoDAO.DeleteById(Integer.parseInt(id));
response.sendRedirect("GetInfo");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
【UpdateByIdServlet】
package com.item.servlet;
import com.item.dao.TbTourinfoDAO;
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 java.io.IOException;
@WebServlet("/UpdateById")
public class UpdateByIdServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String visit_state = request.getParameter("visit_state");
String id = request.getParameter("id");
TbTourinfoDAO.UpdateById(Integer.parseInt(visit_state.equals("0")?"1":"0"),Integer.parseInt(id));
response.sendRedirect("GetInfo");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
在【webapp】下创建
【GetInfo.jsp】
<%@ page import="java.util.List" %>
<%@ page import="com.item.model.TbTourinfo" %><%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2022/5/18 0018
Time: 22:58
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
Title
景区预约登记管理系统
<% List list = (List) request.getAttribute("lists");%>
编号
名称
性别
身份证
年龄
类型
创建时间
是否使用
登录时间
操作
<%
for (TbTourinfo t : list) {
%>
<%=t.getId()%>
<%=t.getName()%>
<%=t.getSex()%>
<%=t.getId_no()%>
<%=t.getAge()%>
<%=t.getType()%>
<%=t.getVisit_date()%>
<%=t.getVisit_state()==0?"未使用":"已使用"%>
<%=t.getRegister_time()%>
修改
删除
<%
}
%>
【AddInfo.jsp】
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2022/5/18 0018
Time: 22:58
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
Title