这篇文章是IDEA版整合ssm框架(Spring+SpringMVC+Mybatis),学生增删改查基础项目。附带源码文章后的Mybatis框架配置(注解方式)。废话不多说,我们开始吧。
1,编写spring配置文件applicationContext.xml。
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
<!--开启注解扫描-->
<context:component-scan base-package="dpdd">
</context:component-scan>
<!--spring配置Mybatis框架-->
<!--配置连接池-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="root"/>
<property name="password" value="root"/>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/school?serverTimezone=UTC"/>
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
</bean>
<!--配置SqlSessionFactory工厂-->
<bean id="factory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--扫描dpdd.dao包里所有的Mybatis的注解-->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="dpdd.dao"/>
</bean>
<!--配置spring声明式事务管理-->
<!--配置事务管理器-->
<bean id="manager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--配置事务通知-->
<tx:advice id="txAdvice" transaction-manager="manager">
<tx:attributes>
<tx:method name="save*" read-only="true"/>
<tx:method name="delete*" read-only="true"/>
<tx:method name="update*" read-only="true"/>
</tx:attributes>
</tx:advice>
<!--配置Aop增强-->
<aop:config>
<aop:pointcut id="pt1" expression="execution(* dpdd.service.impl.StudentServiceImpl.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
</aop:config>
</beans>
2,编写StudentDao类的代码
package dpdd.dao;
import dpdd.entity.Student;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import org.springframework.stereotype.Repository;
import java.util.List;
@Repository
public interface StudentDao {
@Select("select * from student")
List<Student> findAll();
@Insert("insert into student (name,password) values(#{name},#{password})")
void insert(Student student);
@Update("update student set name=#{name},password=#{password} where id=#{id}")
void update(Student student);
@Delete("delete from student where id=#{id}")
void delete(int id);
}
3,编写StudentServiceImpl类的代码
package dpdd.service.impl;
import dpdd.dao.StudentDao;
import dpdd.entity.Student;
import dpdd.service.StudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class StudentServiceImpl implements StudentService {
@Autowired
private StudentDao studentdao;
@Override
public List<Student> findAll() {
return studentdao.findAll();
}
@Override
public void insert(Student student) {
studentdao.insert(student);
}
@Override
public void update(Student student) {
studentdao.update(student);
}
@Override
public void delete(int id) {
studentdao.delete(id);
}
}
4,编写StudentController类的代码
package dpdd.controller;
import dpdd.entity.Student;
import dpdd.service.StudentService;
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 javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
@Controller
@RequestMapping("/stu")
public class StudentController {
@Autowired
private StudentService studentServiceImpl;
/*查询所有*/
@RequestMapping("/findAll")
public String findAll(Model model){
List<Student> students = studentServiceImpl.findAll();
model.addAttribute("all",students);
return "list";
}
/*增删查三个方法的返回值,我都设为void,因为我使用了重定向到/stu/findAll,
也就是查询所有findAll的方法。浏览器将会返回list.jsp页面,*/
/*新增操作*/
@RequestMapping("/add")
public void add(Student student, HttpServletRequest request, HttpServletResponse response) throws IOException {
/*解决中文乱码*/
String s = new String(student.getName().getBytes("ISO-8859-1"), "UTF-8");
student.setName(s);
studentServiceImpl.insert(student);
response.sendRedirect(request.getContextPath()+"/stu/findAll");
}
/*删除操作*/
@RequestMapping("/delete")
public void delete(int id,HttpServletRequest request, HttpServletResponse response) throws IOException {
studentServiceImpl.delete(id);
response.sendRedirect(request.getContextPath()+"/stu/findAll");
}
/*修改操作*/
@RequestMapping("/update")
public void update(Student student, HttpServletRequest request, HttpServletResponse response) throws IOException {
/*解决中文乱码*/
String s = new String(student.getName().getBytes("ISO-8859-1"), "UTF-8");
student.setName(s);
studentServiceImpl.update(student);
response.sendRedirect(request.getContextPath()+"/stu/findAll");
}
}
4,编写index.jsp和pages包里的list.jsp
编写index.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Titletitle>
head>
<body>
<a href="/stu/findAll">查询所有a><br>
新增:
<form method="post" action="/stu/add">
姓名:<input type="text" name="name"><br>
密码:<input type="text" name="password"><br>
<input type="submit" name="添加">
form><br>
修改:
<form method="post" action="/stu/update">
id:<input type="text" name="id"><br>
姓名:<input type="text" name="name"><br>
密码:<input type="text" name="password"><br>
<input type="submit" name="修改">
form><br>
删除:
<form method="post" action="/stu/delete">
删除的id:<input type="text" name="id"><br>
<input type="submit" name="删除"><br>
form><br>
body>
html>
编写list.jsp:
model.addAttribute("all",students);
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
<title>Titletitle>
head>
<body>
<h2>操作成功h2>
${all}
body>
html>
5,启动服务器时加载spring的配置文件
在测试spring框架时,我们是用下面代码加载applicationContext.xml文件
ApplicationContext config = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
现在我们要使用监听器加载spring配置文件,在tomcat服务器启动时能自动加载。因为Mybatis的配置也在applicationContext.xml里,所以同时也能使Mybatis的配置生效。
编写web.xml文件。
<web-app>
<display-name>Archetype Created Web Applicationdisplay-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
<filter>
<filter-name>characterEncodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>characterEncodingFilterfilter-name>
<url-pattern>/url-pattern>
filter-mapping>
<servlet>
<servlet-name>dispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:springmvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>dispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
web-app>
这样就完成了一个简单的ssm的框架。关于源码我已经放在我的github上了,需要的可以去下载,对你有帮助的话,顺手给个star吧。
源码链接: https://github.com/onesjs/ssm-.git.
有不明白的地方可以评论提出。如果有错误或者不足,欢迎指出批评。我会第一时间修改的。