springmvc_ssm Spring、SpringMVC、MyBatis集成

2021-03-26 00:26

阅读：726

标签：location listener required configure mon inter prope 文件中 rri

集成流程理解

三层架构中，控制层调用Service层,Service层调用Dao层，控制层会将Bean对象注入到SpringMVCIOC容器中，Service和Dao层会将Bean对象注入到SpringIOC容器中，而SpringMVCIOC容器的父容器正好是SpringIOC容器，子容器可以使用父容器的Bean对象，所以可以实现三大框架集成

SpringMVCIOC容器会自动将SpringIOC容器设置为自己的父容器。

环境准备：在pom文件中导入各种依赖

web.xml

xml version="1.0" encoding="UTF-8"?>
web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    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>
    servlet>
    servlet-mapping>
        servlet-name>dispatcherServletservlet-name>
        url-pattern>/url-pattern>
    servlet-mapping>

    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>
    
    
    listener>
        listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>
    
    context-param>
        param-name>contextConfigLocationparam-name>
        param-value>classpath:spring.xmlparam-value>
    context-param>
web-app>

最好每一步集成完都先进行相应测试

集成SpringMVC

控制器

package com.zl.controller;

import com.bean.Account;
import com.zl.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;

@Controller
@RequestMapping("/account")
public class AccountController {
    @Autowired
    private AccountService accountService;
    @RequestMapping("/find")
    public String find() {
        List list = accountService.findAll();
        System.out.println(list);
        return "success";
    }

    @RequestMapping("/add")
    public String add(Account account) {
        Integer i = accountService.addAccount(account);
        System.out.println(i);
        return "success";
    }
}

springmvc.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:mvc="http://www.springframework.org/schema/mvc"
       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">

    
    
    
    
    context:component-scan base-package="com.zl" use-default-filters="false">
        context:include-filter type="annotation" expression="org.springframework.stereotype.Controller">context:include-filter>
    context:component-scan>
    
    mvc:annotation-driven>mvc:annotation-driven>
    
    bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
        property name="prefix" value="/WEB-INF/pages/">property>
        property name="suffix" value=".jsp">property>
    bean>
    
    mvc:default-servlet-handler>mvc:default-servlet-handler>
    
    
beans>

集成Spring

集成Spring和SpringMVC，只需要创建SpringIOC容器即可，SpringMVCIOC容器会自动将SpringIOC容器设置为自己的父容器。

包扫描冲突解决

如果不做处理会导致事务处理失效

两种处理方式：spring.xml与springmvc.xml分别只扫描对应部分，注意要配置容器加载监听器；或者全交由子类容器springmvc.xml来扫描，注意要导入

集成MyBatis

package com.zl.service;

import com.bean.Account;
import java.util.List;

public interface AccountService {

    List findAll();

    Integer addAccount(Account account);
}

package com.zl.service.impl;

import com.bean.Account;
import com.zl.mapper.AccountMapper;
import com.zl.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

import java.util.List;
@Service
public class AccountServiceImpl  implements AccountService {
    //@Autowired
    @Resource  //减少与spring的耦合
    private AccountMapper accountMapper;
    @Override
    public List findAll() {
        System.out.println("com.zl.service.impl.AccountServiceImpl#findAll");
        return accountMapper.findAll();
    }

    @Override
    public Integer addAccount(Account account) {
        System.out.println("com.zl.service.impl.AccountServiceImpl#addAccount");
        Integer i = accountMapper.addAccount(account);
        //System.out.println(10/0);
        return i;
    }
}

package com.zl.mapper;

import com.bean.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface AccountMapper {
    @Select("select * from account")
    List findAll();
    @Insert("insert into account (name,money) values(#{name},#{money})")
    Integer addAccount(Account account);
}

spring.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:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:util="http://www.springframework.org/schema/util"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/util
       http://www.springframework.org/schema/util/spring-util.xsd">

    
    
    
    
    bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        property name="locations">
            list>
                value>classpath:jdbc.propertiesvalue>
            list>
        property>
    bean>
    
    
    
    
    
    
    context:component-scan base-package="com.zl" use-default-filters="true">
        context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller">context:exclude-filter>
    context:component-scan>

    
    
    bean class="com.mchange.v2.c3p0.ComboPooledDataSource" id="dataSource">
        property name="driverClass" value="${driver}">property>
        property name="jdbcUrl" value="${url}">property>
        property name="user" value="${username}">property>
        property name="password" value="${password}">property>
       
    bean>
    
    
    bean class="org.mybatis.spring.SqlSessionFactoryBean" id="factoryBean">
        property name="dataSource" ref="dataSource">property>
    bean>

    
    
    bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        property name="basePackage" value="com.zl.mapper">property>
    bean>

    
    bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">
        property name="dataSource" ref="dataSource">property>
    bean>
    tx:advice transaction-manager="transactionManager" id="txadvice">
        tx:attributes>
            tx:method name="findAll" read-only="true"/>
            tx:method name="addAccount" propagation="REQUIRED" rollback-for="java.lang.Exception"/>
        tx:attributes>
    tx:advice>
    aop:config>
        aop:advisor advice-ref="txadvice" pointcut="execution(* com.zl.service.impl.AccountServiceImpl.*(..))">aop:advisor>
    aop:config>
beans>

springmvc_ssm Spring、SpringMVC、MyBatis集成

标签：location listener required configure mon inter prope 文件中 rri

原文地址：https://www.cnblogs.com/21556guo/p/13761715.html

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springmvc_ssm Spring、SpringMVC、MyBatis集成

集成流程理解

web.xml

集成SpringMVC

集成Spring

包扫描冲突解决

集成MyBatis

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