1. 技术文章
  2. SSM配置文件

SSM配置文件

由 允我心安 提交于 2020-03-07 15:53:15

配置文件

1. pom.xml导jar包
junit包一定要4.12及以上
同时需导入,用来加载文件

<resources>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>

3. 逆向工程生成bean及mapper，分别放在bean及mapper下
每次生成mapper.xml，再挪动时一定记得修改namespace
在这里插入图片描述
4. bootstrap css框架
jquery的引用必须在bootstrap之前

<!DOCTYPE html>
<%@ page language="java" import="java.util.*" isELIgnored="false" contentType="text/html;charset=UTF-8" pageEncoding="utf-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html lang="zh-CN">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <%--    jquery--%>
    <script type="text/javascript" src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
    <%--    引入样式--%>
    <link href="${pageContext.request.contextPath}/static/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet">
    <script src="${pageContext.request.contextPath}/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>

    <title></title>
</head>

5. 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">

  <display-name>Archetype Created Web Application</display-name>
  
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!--  启动spring的容器-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:applicationContext.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--使用REST风格的URI,将页面普通的post请求转为指定的delete或put请求-->
  <filter>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!--  字符编码过滤器-->
  <filter>
    <filter-name>CharacterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>utf-8</param-value>
    </init-param>
    <init-param>
      <param-name>forceRequestEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
    <init-param>
      <param-name>forceResponseEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

5. 与web.xml统一目录下(即/WEB-INF下)建立springmvc-servlet.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:aop="http://www.springframework.org/schema/aop"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"

       xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util-4.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc.xsd">

<!--    支持高级功能，JSR303、ajax-->
    <mvc:annotation-driven/>
<!--    将springmvc不能处理的请求交给tomcat-->
    <mvc:default-servlet-handler/>
<!--    视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

    </bean>
    <!--    springmvc的配置文件，包含网站跳转逻辑控制、配置-->
    <context:component-scan base-package="controller" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

</beans>
  1. 在resource下建立applicationContext.xml，配置spring容器。数据源、事务控制、连接池、配置与mybatis的整合、sqlSession
<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"

       xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/aop  http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
        http://www.springframework.org/schema/util  http://www.springframework.org/schema/util/spring-util-4.0.xsd
        http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/tx  http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="bean,controller,dao,service">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--    Spring的配置文件，这里主要配置和业务逻辑有关的-->
    <!--    数据源、事务控制-->
    <!--    引入dbconfig-->
    <context:property-placeholder location="classpath:dbconfig.properties"/>

    <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClass}"/>
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/>
        <property name="user" value="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="minPoolSize" value="1" />
        <property name="maxPoolSize" value="300" />
        <property name="maxIdleTime" value="60" />
        <property name="acquireIncrement" value="5" />
        <property name="initialPoolSize" value="1" />
        <property name="idleConnectionTestPeriod" value="60" />
    </bean>

    <!--    配置与mybatis的整合-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--        指定mybatis全局配置文件的位置-->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <property name="dataSource" ref="pooledDataSource"/>
        <!--        指定mybatis，mapper文件的位置-->
        <property name="mapperLocations" value="classpath*:dao/*.xml"/>
    </bean>

    <!--    配置扫描器-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--        扫描所有的dao接口的实现，加入到ioc容器中-->
        <property name="basePackage" value="dao"/>
    </bean>

    <!--    事务控制-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--        控制住数据源-->
        <property name="dataSource" ref="pooledDataSource"/>
    </bean>
    <!--    xml配置形式的事务-->
    <aop:config>
        <aop:pointcut id="txPoint" expression="execution(* service..*(..))"/>
        <!--        配置事务增强-->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>
    </aop:config>
    <!--    配置事务增强-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!--            所有方法都是事务方法-->
            <tx:method name="*"/>
            <!--            以get开始的所有方法,查询类-->
            <tx:method name="get*" read-only="true"/>
        </tx:attributes>
    </tx:advice>

    <!--配置一个可以执行批量的sqlSession-->
    <bean  id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"/>
        <constructor-arg name="executorType" value="BATCH"/>
    </bean>
</beans>

7. 在resource下建立dbconfig.properties，配置数据库连接

  • 需添加参数serverTimezone=UTC
  • mysql驱动版本过高则Driver需改为com.mysql.cj.jdbc.Driver
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/306?serverTimezone=UTC
jdbc.driverClass=com.mysql.cj.jdbc.Driver
jdbc.user=root
jdbc.password=123456

9. 在resource下建立mybatis-config.xml，

  • 其中需配置数据库分页插件与为bean下类起别名
<?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>
    <settings>
        <!--        驼峰命名规则-->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!--    起别名-->
    <typeAliases>
        <package name="bean"/>
    </typeAliases>

    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
            <property name="reasonable" value="true"/>
        </plugin>
    </plugins>
</configuration>

8. 配置完以上参数后，创建一个MapperTest.java类来测试与数据库的连接；

  • 注意两个注解
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(locations = {“classpath:applicationContext.xml”})
import bean.user;
import org.apache.ibatis.session.SqlSession;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import dao.userMapper;


import java.util.UUID;

//导入springTest模块
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:applicationContext.xml"})//使用此注解指定spring配置文件的位置
public class MapperTest {
    @Autowired
    userMapper userMapper;
    @Autowired
    SqlSession sqlSession;

    @Test
    public void test(){
        System.out.println(userMapper);
        userMapper.insertSelective(new user(null,"123","456"));
    }
}

利用for循环插入100条数据备用

for (int i=0;i<100;i++){
            String username = String.valueOf(i+1000);
            userMapper.insertSelective(new user(null,username,username));
        }

Tomcat在启动时会报三条错误，但不影响程序运行

严重: Unable to process Jar entry [module-info.class] from Jar [jar:file:/D:/lubenwei/Second/target/Second/WEB-INF/lib/jackson-databind-2.10.2.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19
严重: Unable to process Jar entry [module-info.class] from Jar [jar:file:/D:/lubenwei/Second/target/Second/WEB-INF/lib/jackson-annotations-2.10.2.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19
严重: Unable to process Jar entry [module-info.class] from Jar [jar:file:/D:/lubenwei/Second/target/Second/WEB-INF/lib/jackson-core-2.10.2.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19

标签
bean
ssm框架
spring框架
servlet
ssm
aop
易学教程内所有资源均来自网络或用户发布的内容，如有违反法律规定的内容欢迎反馈！
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!