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java开发 spring整合springMVC(+mybatis)

程序员文章站 2022-06-28 16:46:53
spring整合springMVC一、步骤1、添加springMVC所需jar包1、项目包结构2、在web.xml文件里配置请求分发器springMVC(DispatcherServlet)

spring整合springMVC

一、步骤

1、添加springMVC所需jar包

java开发 spring整合springMVC(+mybatis)

1、项目包结构

java开发 spring整合springMVC(+mybatis)

2、在web.xml文件里配置请求分发器springMVC(DispatcherServlet)

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
	version="3.1">
	<display-name>SpringAndMybatis</display-name>
	<servlet>
		<servlet-name>spring-mvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- 默认的springMVC配置文件名称为[servlet-name]-servlet.xml，并且默认位置在/WEB-INF/[servlet-name]-servlet.xml 
			这里更改默认配置，使用自己定义的springMVC配置文件 -->
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springMVC-config.xml</param-value>
		</init-param>
		<!-- 程序启动立即启动 -->
		<load-on-startup>0</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>spring-mvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

3、编写springMVC配置文件

springMVC-config.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:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
		http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc.xsd">
		<!-- 
		基于注解的springMVC使用配置
		<mvc:annotation-driven/> 覆盖了DispatcherServlet对象的很多默认配置信息
		相当于注册了一个RequestMappingHandlerMapping，一个RequestMappingHandlerAdapter
		给@RequestMapping等注解提供了支持，并提供很多其他类似数据绑定等的功能。
	 -->
	<mvc:annotation-driven></mvc:annotation-driven>
	<!-- 加入组件搜索路径 comonent-scan，确保可以识别@Controller注解。 -->
	<context:component-scan base-package="controller"></context:component-scan>
</beans>

4、在web.xml里配置spring容器随项目启动而启动

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
	version="3.1">
	<display-name>SpringAndMybatis</display-name>
	<!-- 
		以下三个<context-param>容器初始化参数是用来解决下面抛出的异常
		threw NamingException with message: Name [spring.profiles.active] is not bound in this Context
		threw NamingException with message: Name [spring.profiles.default] is not bound in this Context
		threw NamingException with message: Name [spring.liveBeansView.mbeanDomain] is not bound in this Context 
		虽然不影响程序的正常运行，但解决了总是看得舒服点
	-->
	<context-param>
		<param-name>spring.profiles.active</param-name>
		<param-value>dev</param-value>
	</context-param>
	<context-param>
		<param-name>spring.profiles.default</param-name>
		<param-value>dev</param-value>
	</context-param>
	<context-param>
		<param-name>spring.liveBeansView.mbeanDomain</param-name>
		<param-value>dev</param-value>
	</context-param>
	<!-- 配置spring容器 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring-config.xml</param-value>
	</context-param>
	<!-- 加载spring的配置文件 -->
  <!-- 这是一个监听器,当项目启动的时候会加载web的初始化参数值,然后创建spring的容器 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	<!-- 配置请求分发器springMVC -->
	<servlet>
		<servlet-name>spring-mvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- 默认的springMVC配置文件名称为[servlet-name]-servlet.xml，并且默认位置在/WEB-INF/[servlet-name]-servlet.xml 
			这里更改默认配置，使用自己定义的springMVC配置文件 -->
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springMVC-config.xml</param-value>
		</init-param>
		<!-- 程序启动立即启动springMVC配置 -->
		<load-on-startup>0</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>spring-mvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

这算是一个完整版的web.xml文件，整合了spring和springMVC

2、全部代码

Student.java

package pojo;

public class Student {
	private int sno;
	private String sname;
	private int sage;

	public Student() {
	}

	public Student(int sno, String sname, int sage) {
		this.sno = sno;
		this.sname = sname;
		this.sage = sage;
	}

	public int getSno() {
		return sno;
	}

	public void setSno(int sno) {
		this.sno = sno;
	}

	public String getSname() {
		return sname;
	}

	public void setSname(String sname) {
		this.sname = sname;
	}

	public int getSage() {
		return sage;
	}

	public void setSage(int sage) {
		this.sage = sage;
	}

	public String toString() {
		return "Student [sno=" + sno + ", sname=" + sname + ", sage=" + sage + "]";
	}

}

StudentService.java

package service;

import java.util.List;

import pojo.Student;

public interface StudentService {
	public List<Student> setectAllStudent();
	public void addStudent(Student student);
	public void updateStudent(Student student);
	public void deleteStudent(int id);
}

StudentServiceImpl.java

package service.impl;

import java.util.List;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import dao.StudentMapper;
import pojo.Student;
import service.StudentService;

@Service
public class StudentServiceImpl implements StudentService{
	
	@Autowired
	SqlSessionFactory sessionFactory;

	public List<Student> setectAllStudent() {
		SqlSession sqlSession = sessionFactory.openSession();
		StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
		List<Student> students = mapper.setectAllStudent();
		students.forEach(System.out::println);
		return students;
	}

	public void addStudent(Student student) {
		
	}

	public void updateStudent(Student student) {
		
	}

	public void deleteStudent(int id) {
		
	}

}

StudentMapper.java

package dao;

import java.util.List;

import pojo.Student;

public interface StudentMapper {
	public List<Student> setectAllStudent();
	public void addStudent(Student student);
	public void updateStudent(Student student);
	public void deleteStudent(int id);
}

StudentMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="dao.StudentMapper">
	<select id="setectAllStudent" resultType="pojo.Student">
		SELECT "sno","sname","sage" FROM "student"
	</select>
</mapper>

StudentControler.java

package controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import service.StudentService;

@Controller
public class StudentControler {
	@Autowired
	StudentService service;
	
	@RequestMapping("/selectStudent")
	public void selectStudent(String name,String age) {
		System.out.println("name: " + name);
		System.out.println("age: " + age);
		service.setectAllStudent();
	}
}

db.properties

url=jdbc:oracle:thin:@localhost:1521:xe
driver=oracle.jdbc.OracleDriver
user=myuser
password=myuser

log4j.properties

log4j.rootLogger=DEBUG, stdout 
log4j.appender.stdout=org.apache.log4j.ConsoleAppender 
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 
log4j.appender.stdout.layout.ConversionPattern=%d [%-5p] %c - %m%n

mybatis-config.xml

<?xml version="1.0" encoding="utf-8"?> 
		<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
		"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<mappers>
		<mapper class="dao.StudentMapper" />
	</mappers>
</configuration>

spring-config.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"
		xsi:schemaLocation="http://www.springframework.org/schema/beans
		http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context.xsd">
	<context:component-scan base-package="service"></context:component-scan>
	<!-- 配置sqlSessionFactory -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 
		有mybatis的xml配置文件时这样配置
		<property name="configLocation" value="classpath:mybatis-config.xml"></property> 
		-->
		<!-- 无mybatis的xml配置文件时这样配置 -->
		<property name="mapperLocations">
			<array>
				<value>classpath:dao/StudentMapper.xml</value>
			</array>
		</property>
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<!-- 配置数据源 -->
	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="oracle.jdbc.OracleDriver"></property>
		<property name="url" value="jdbc:oracle:thin:@localhost:1521:xe"></property>
		<property name="username" value="myuser"></property>
		<property name="password" value="myuser"></property>
	</bean>
	<!-- 配置扫描器 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
		<property name="basePackage" value="dao"></property>
	</bean>
	
</beans>

springMVC-config.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:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
		http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc.xsd">
		<!-- 
		基于注解的springMVC使用配置
		<mvc:annotation-driven/> 覆盖了DispatcherServlet对象的很多默认配置信息
		相当于注册了一个RequestMappingHandlerMapping，一个RequestMappingHandlerAdapter
		给@RequestMapping等注解提供了支持，并提供很多其他类似数据绑定等的功能。
	 -->
	<mvc:annotation-driven></mvc:annotation-driven>
	<!-- 加入组件搜索路径 comonent-scan，确保可以识别@Controller注解。 -->
	<context:component-scan base-package="controller"></context:component-scan>
</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
	version="3.1">
	<display-name>SpringAndMybatis</display-name>
	<!-- 
		以下三个<context-param>容器初始化参数是用来解决下面抛出的异常
		threw NamingException with message: Name [spring.profiles.active] is not bound in this Context
		threw NamingException with message: Name [spring.profiles.default] is not bound in this Context
		threw NamingException with message: Name [spring.liveBeansView.mbeanDomain] is not bound in this Context 
		虽然不影响程序的正常运行，但解决了总是看得舒服点
	-->
	<context-param>
		<param-name>spring.profiles.active</param-name>
		<param-value>dev</param-value>
	</context-param>
	<context-param>
		<param-name>spring.profiles.default</param-name>
		<param-value>dev</param-value>
	</context-param>
	<context-param>
		<param-name>spring.liveBeansView.mbeanDomain</param-name>
		<param-value>dev</param-value>
	</context-param>
	<!-- 配置spring容器 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring-config.xml</param-value>
	</context-param>
	<!-- 加载spring的配置文件 -->
  <!-- 这是一个监听器,当项目启动的时候会加载web的初始化参数值,然后创建spring的容器 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	<!-- 配置请求分发器springMVC -->
	<servlet>
		<servlet-name>spring-mvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- 默认的springMVC配置文件名称为[servlet-name]-servlet.xml，并且默认位置在/WEB-INF/[servlet-name]-servlet.xml 
			这里更改默认配置，使用自己定义的springMVC配置文件 -->
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springMVC-config.xml</param-value>
		</init-param>
		<!-- 程序启动立即启动springMVC配置 -->
		<load-on-startup>0</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>spring-mvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

本文地址：https://blog.csdn.net/qq_42485441/article/details/109643733

相关标签： spring mybatis

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