spring boot mybatis js对mysql进行增删改查
spring boot mybatis jsp对mysql进行增删改查
之前百度了很多资料发现有关spring boot结合mybatis结合前端页面对数据库进行增删改查比较少，大部分都是直接给接口，然后postman，所以今天来****发布一下史上最丑的前端页面对数据库进行增删改查
添加相关的jar包，在pom.xml添加：
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
增加pom对jsp文件的支持：
<!-- servlet依赖. -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- tomcat的支持.-->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
增加pom文件的jdbc、mybatis的支持
<!-- jdbc -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<!-- mybatis -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
App.java
package cn.suliaosxd;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@MapperScan("cn.suliaosxd.springboot.mapper")
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
StudentController.java
package cn.suliaosxd.springboot.controller;
import java.util.List;
import org.apache.catalina.servlet4preview.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import cn.suliaosxd.springboot.mapper.StudentMapper;
import cn.suliaosxd.springboot.pojo.Student;
@Controller
public class StudentController {
@Autowired
StudentMapper studentMapper;
@RequestMapping("/listStudent")
public String listStudent(Model model) {
List<Student> students = studentMapper.findAll();
model.addAttribute("students", students);
return "listStudent";
}
@RequestMapping( value = "/findstudentbyid", method = RequestMethod.GET)
public String findStudent(HttpServletRequest request) {
Student student = studentMapper.findStudentByid(request.getParameter("id"));
request.setAttribute("student", student);
return "findstudentbyid";
}
@RequestMapping(value = "/addstudent",method = RequestMethod.POST)
public void addstudent(Student student)
{
studentMapper.addstudent(student);
}
@RequestMapping(value = "/deletestudent")
public void deletestudent(String id) {
studentMapper.deleteStudent(id);
}
@RequestMapping(value = "/updatastudent",method = RequestMethod.POST)
public void updatestudent(String id,String name,String age,String sex) {
Student student = new Student();
student.setId(id);
student.setName(name);
student.setAge(age);
student.setSex(sex);
studentMapper.update(student);
}
}
StudentMapper.java
package cn.suliaosxd.springboot.mapper;
import java.util.List;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import org.springframework.stereotype.Repository;
import cn.suliaosxd.springboot.pojo.Student;
@Repository
public interface StudentMapper {
@Select("SELECT * FROM student")
public List<Student> findAll();
@Select("SELECT * FROM student WHERE ID = #{id}")
public Student findStudentByid(@Param("id") String id);
@Insert("INSERT INTO student(id,name,age,sex) values(#{id},#{name},#{age},#{sex})")
public void addstudent(Student student);
@Delete("delete from student where id=#{id}")
public int deleteStudent(@Param("id")String id);
@Update("update student set name=#{name},age=#{age},sex=#{sex} where id=#{id}")
public int update(Student studet);
}
Student.java
package cn.suliaosxd.springboot.pojo;
import java.util.Date;
public class Student {
private String id;
private Integer student_id;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Integer getStudent_id() {
return student_id;
}
public void setStudent_id(Integer student_id) {
this.student_id = student_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 Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
private String name;
private String age;
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
private String sex;
private Date birthday;
}
application.yml
addstudent.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="refresh" content="5;url=listStudent">
<title>Insert title here</title>
</head>
<body>
添加成功
</br>
<hr>
<h3>五秒后将自动跳转到初始页面</h3>
</body>
</html>
deletestudent.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="refresh" content="5;url=listStudent">
<title>Insert title here</title>
</head>
<body>
删除成功</br>
<hr>
<h3>五秒后将自动跳转到初始页面</h3>
</body>
</html>
findstudentbyid.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="refresh" content="5;url=listStudent">
<title>Insert title here</title>
</head>
<body>
获取成功：${student.name} ${student.sex} ${student.age} ${student.sex}
</br>
<hr>
<h3>五秒后将自动跳转到初始页面</h3>
</body>
</html>
listStudent.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<table align='center' border='1' cellspacing='0'>
<tr>
<td>id</td>
<td>name</td>
<td>age</td>
<td>sex</td>
</tr>
<c:forEach items="${students}" var="s" varStatus="st">
<tr>
<td>${s.id}</td>
<td>${s.name}</td>
<td>${s.age}</td>
<td>${s.sex}</td>
</tr>
</c:forEach>
</table>
<hr>
添加：
<form action="addstudent" method="post">
id: <input type="text" name="id" ></input></br>
name:<input type="text" name="name" ></input></br>
age:<input type="text" name="age" ></input></br>
sex:<input type="text" name="sex"></input></br>
<input type="submit"></input>
</form>
<hr>
<form action="deletestudent" method="post">
所要删除的id：<input type="text" name = "id"></input>
<input type="submit"></input>
</form>
<hr>
<form action="updatastudent" method="post">
所要更改的id：<input type="text" name = "id"></input></br>
name:<input type="text" name = "name"></input></br>
age:<input type="text" name = "age"></input></br>
sex:<input type="text" name = "sex"></input></br>
<input type="submit"></input>
</form>
<hr>
查询：
<form action="findstudentbyid" method="get">
请输入id：<input type="text" id="id" name="id"></input></br> <input type="submit"></input></br>
</form>
updatastudent.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="refresh" content="5;url=listStudent">
<title>Insert title here</title>
</head>
<body>
修改成功</br>
<hr>
<h3>五秒后将自动跳转到初始页面</h3>
</body>
</html>
接下来让各位看看本人做的史上最丑的前端数据管理页面
目前不知道为什么插入第7条数据的时候会显示在第6条上面，请知道的大佬指教，谢谢