14-SSM整合

标签：exce   Fix   beans   事务   springmvc   multipart   rom   rac   连接数   

今日知识

1. Spring整合MyBatis
2. SSM普通整合
3. SSM整合（Spring和SpringMVC分离）
4. 纯JavaConfig的SSM

Spring整合MyBatis

1. 导包

<properties>
    <spring.version>5.1.8.RELEASE</spring.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.2.6</version>
    </dependency>
    <!--mybatis的spring支持包-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.2.2</version>
    </dependency>
    <!--连接数据库的四个包-->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.16</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>commons-dbcp</groupId>
        <artifactId>commons-dbcp</artifactId>
        <version>1.2.2</version>
    </dependency>
    <!--test-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>
</dependencies>

2. 创建UserMapper接口

public interface UserMapper {
    public User selectByPrimaryKey(int id);
}

3. 创建UserService接口

public interface UserService {
    public User selectByPrimaryKey(int id);
}

4. 创建UserMapperImpl实现类

@Component
public class UserServiceImpl implements UserService {
    @Autowired
    UserMapper userMapper;
    public User selectByPrimaryKey(int id) {
        return userMapper.selectByPrimaryKey(id);
    }
}

5. UserMapper.xml创建

<mapper namespace="com.rqy.mapper.UserMapper">
<resultMap id="BaseResultMap" type="com.rqy.domain.User">
<id column="id" jdbcType="INTEGER" property="id" />
<result column="username" jdbcType="VARCHAR" property="username" />
<result column="birthday" jdbcType="DATE" property="birthday" />
<result column="sex" jdbcType="CHAR" property="sex" />
<result column="address" jdbcType="VARCHAR" property="address" />
/resultMap>
<select id="selectByPrimaryKey" parameterType="java.lang.Integer"   resultMap="BaseResultMap">
select
  *
from user
where id = #{id,jdbcType=INTEGER}
</select>
</mapper>

6. application.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:context="http://www.springframework.org/schema/context"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xsi:schemaLocation="
    http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd
    http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">

<context:component-scan base-package="com.rqy"/>
<!--<mvc:annotation-driven/>-->
<!--数据源-->
<bean id="datasource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql://localhost:3306/mybatisday01?serverTimezone=UTC"/>
    <property name="username" value="root"/>
    <property name="password" value="123456"/>
</bean>
<!--1.1.2	配置sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="datasource"/>
    <!--<property name="configLocation" value="classpath:SqlMapConfig.xml"/>-->
 </bean>
<!--MapperFactoryBean,缺点每个mapper接口都要注册进来-->

<!--<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
    <property name="mapperInterface" value="com.rqy.mapper.UserMapper"/>
    &lt;!&ndash;sqlSessionFactory注入到mapper中，代替mapper实现类&ndash;&gt;
    <property name="sqlSessionFactory" ref="sqlSessionFactory"/>
</bean>-->

<!--把整个mapper接口所在的包都注册进来-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <!--扫描包，取代了SqlMapConfig.xml  mapper映射文件-->
    <property name="basePackage" value="com.rqy.mapper"/>
    <!--与上面不太一样-->
    <property name="sqlSessionFactoryBeanName"  value="sqlSessionFactory"/>
</bean>
</beans>

7. 测试

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:application.xml")
public class MyTest {
@Autowired
UserService userService;
@Test
public void  test(){
    User user = userService.selectByPrimaryKey(35);
    System.out.println(user);
}
}

SSM普通整合

1. 导包（数据源的包采用的druid的，你也可以采用其他的额）

<properties>
    <spring.version>5.1.8.RELEASE</spring.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>3.0-alpha-1</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.2.6</version>
    </dependency>
    <!--mybatis的spring支持包-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.2.2</version>
    </dependency>
    <!--连接数据库-->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.16</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.1.11</version>
    </dependency>
    <!--test-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!--jackson-->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.7</version>
    </dependency>
</dependencies>

2. 创建UserMapper接口

public interface UserMapper {
    public User selectByPrimaryKey(int id);
}

3. 创建UserService接口

public interface UserService {
    public User selectByPrimaryKey(int id);
}

4. 创建UserMapperImpl实现类

@Component
public class UserServiceImpl implements UserService {
    @Autowired
    UserMapper userMapper;
    public User selectByPrimaryKey(int id) {
        return userMapper.selectByPrimaryKey(id);
    }
}

5. UserMapper.xml创建

<mapper namespace="com.rqy.mapper.UserMapper">
<resultMap id="BaseResultMap" type="com.rqy.domain.User">
<id column="id" jdbcType="INTEGER" property="id" />
<result column="username" jdbcType="VARCHAR" property="username" />
<result column="birthday" jdbcType="DATE" property="birthday" />
<result column="sex" jdbcType="CHAR" property="sex" />
<result column="address" jdbcType="VARCHAR" property="address" />
/resultMap>
<select id="selectByPrimaryKey" parameterType="java.lang.Integer"   resultMap="BaseResultMap">
select
  *
from user
where id = #{id,jdbcType=INTEGER}
</select>
</mapper>

6. application.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"
   xmlns:aop="http://www.springframework.org/schema/aop"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
	http://www.springframework.org/schema/mvc
	http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-3.2.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">

<context:component-scan base-package="com.rqy"/>
<mvc:annotation-driven/>
<!--数据源-->
<bean id="datasource" class="com.alibaba.druid.pool.DruidDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql://localhost:3306/mybatisday01?serverTimezone=UTC"/>
    <property name="username" value="root"/>
    <property name="password" value="123456"/>
</bean>
<!--1.1.2	配置sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="datasource"/>
 </bean>
<!--把整个mapper接口所在的包都注册进来-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <!--扫描包，取代了SqlMapConfig.xml  mapper映射文件-->
    <property name="basePackage" value="com.rqy.mapper"/>
    <!--与上面不太一样-->
    <property name="sqlSessionFactoryBeanName"  value="sqlSessionFactory"/>
</bean>

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/views/"/>
    <property name="suffix" value=".jsp"/>
</bean>
</beans>

7. Web.xml

<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:application.xml</param-value>
    </init-param>
</servlet>
<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

8. UserController.java

@Controller
public class UserController {
@Autowired
UserService userService;
@RequestMapping("user")
public  @ResponseBody User query(int id){
    User user = userService.selectByPrimaryKey(id);
    System.out.println(user);
    return  user;
}
}

SSM整合（Spring和SpringMVC分离）

1. 导包（和上面一样）

2. 创建UserMapper接口（和上面一样）

3. 创建UserService接口（和上面一样）

4. 创建UserMapperImpl实现类（和上面一样）

5. UserMapper.xml创建（和上面一样）

6. application.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"
   xmlns:aop="http://www.springframework.org/schema/aop"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
	http://www.springframework.org/schema/mvc
	http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-3.2.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
	
<context:component-scan base-package="com.rqy">
    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!--数据源-->
<bean id="datasource" class="com.alibaba.druid.pool.DruidDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql://localhost:3306/mybatisday01?serverTimezone=UTC"/>
    <property name="username" value="root"/>
    <property name="password" value="123456"/>
</bean>
<!--1.1.2	配置sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="datasource"/>
</bean>

<!--把整个mapper接口所在的包都注册进来-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <!--扫描包，取代了SqlMapConfig.xml  mapper映射文件-->
    <property name="basePackage" value="com.rqy.mapper"/>
    <!--与上面不太一样-->
    <property name="sqlSessionFactoryBeanName"  value="sqlSessionFactory"/>
</bean>
<!--测试的bean，项目初始化的时候就会执行-->
<bean class="com.rqy.domain.SpringBean"/>
</beans>

7. application-mvc.xml

<!--扫描包这个配置在springmvc的容器中不能去掉-->
<context:component-scan base-package="com.rqy.controller">
    <context:include-filter  type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<mvc:annotation-driven/>
<!--测试的bean，当有url请求的时候才会执行-->
<bean class="com.rqy.domain.MvcBean"/>

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/views/"/>
    <property name="suffix" value=".jsp"/>
</bean>

8. Web.xml（分别把application.xml和application-mvc.xml配置进去）

<!--通过listner注册spring容器，父容器-->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:application.xml</param-value>
</context-param>

<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:application-mvc.xml</param-value>
    </init-param>
</servlet>
<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

9. UserController.java

@Controller
public class UserController {
@Autowired
UserService userService;
@RequestMapping("user")
public  @ResponseBody User query(int id){
    User user = userService.selectByPrimaryKey(id);
    System.out.println(user);
    return  user;
}
}

纯JavaConfig的SSM整合

思想：

1. 取消了application.xml和application-MVC.xml以及web.xml，
2. 用了一个继承AbstractAnnotationConfigDispatcherServletInitializer的类来实现具体文件配置

1. AppInitialize继承AACDSi类的书写

public class AppInitialize extends AbstractAnnotationConfigDispatcherServletInitializer {
//SpringConfig指的是spring配置文件
@Override
protected Class<?>[] getRootConfigClasses() {
    return new Class[]{SpringConfig.class};
}
//SpringMvcConfig指的是springMvc配置文件
@Override
protected Class<?>[] getServletConfigClasses() {
    return new Class[]{SpringMvcConfig.class};
}
//配置sevlet请求路径/就OK了
@Override
protected String[] getServletMappings() {
    return new String[]{"/"};
}
//配置编码过滤器
@Override
protected Filter[] getServletFilters() {
    CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();
    characterEncodingFilter.setEncoding("utf-8");

    return new Filter[]{characterEncodingFilter};
}
}

2. SpringConfig类的书写

@Configuration
@ComponentScan(value = "com.rqy",
        excludeFilters = @ComponentScan.Filter(type = FilterType.ANNOTATION,classes = {Controller.class}))
@EnableTransactionManagement
@EnableAspectJAutoProxy
public class SpringConfig {

//dataSource，必要
@Bean
public DataSource druidDatasource(){
    DruidDataSource druidDataSource = new DruidDataSource();
    druidDataSource.setDriverClassName("com.mysql.jdbc.Driver");
    druidDataSource.setUrl("jdbc:mysql://localhost:3306/mybatisday01");
    druidDataSource.setUsername("root");
    druidDataSource.setPassword("123456");
    return druidDataSource;
}

//SqlSessionFactoryBean 必要
@Bean
public SqlSessionFactoryBean sqlSessionFactoryBean(DataSource dataSource){
    SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
    sqlSessionFactoryBean.setDataSource(dataSource);
    return sqlSessionFactoryBean;
}
//MapperScannerConfigurer   必要
@Bean
public MapperScannerConfigurer mapperScannerConfigurer(){
    MapperScannerConfigurer mapperScannerConfigurer =new MapperScannerConfigurer();
    mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactoryBean");
    mapperScannerConfigurer.setBasePackage("com.rqy.mapper");
    return mapperScannerConfigurer;
}
//文件的上传的配置，有需要才配置
@Bean
public CommonsMultipartResolver multipartResolver(){
    CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver();
    commonsMultipartResolver.setMaxInMemorySize(5240000);
    return commonsMultipartResolver;
}
//配置事务管理器，同时要开启注解
@Bean
public DataSourceTransactionManager transactionManager(DataSource dataSource){
    DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager();
    dataSourceTransactionManager.setDataSource(dataSource);
    return dataSourceTransactionManager;
}
}

3. SpringMvcConfig配置需要实现WebMvcConfigurer接口

@EnableWebMvc
@ComponentScan(value = "com.rqy.controller",
    includeFilters =@ComponentScan.Filter(type = FilterType.ANNOTATION,classes = Controller.class) )
public class SpringMvcConfig implements WebMvcConfigurer{
<!--实现date的转换开始-->
//注入本身已有的接口
@Autowired
ConfigurableConversionService conversionService;
//把自定义的conversionService重新注册到bean中
@Bean
//保证conversionService的唯一性
@Primary
public ConfigurableConversionService conversionService(){
    return conversionService;
}
//指定执行顺序
@PostConstruct
public  void addConverters(){
    String2DateConverter string2DateConverter = new String2DateConverter();
    conversionService.addConverter(string2DateConverter);
}
<!--实现date的转换结束-->
<!--实现过滤器的配置-->
@Override
public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(new MyFirstInterceptor());
    //registry.addInterceptor().addPathPatterns("/abc/**");
}
<!--实现静态资源的配置-->
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/pic/**").addResourceLocations("file:D:/pic/");
    registry.addResourceHandler("/pic/**").addResourceLocations("classpath:/pic/");
    registry.addResourceHandler("/pic/**").addResourceLocations("/WEB-INF/pic");
}
//配置视图解析器
@Bean
public InternalResourceViewResolver internalResourceViewResolver(){
    InternalResourceViewResolver internalResourceViewResolver = new InternalResourceViewResolver();
    internalResourceViewResolver.setPrefix("/WEB-INF/views/");
    internalResourceViewResolver.setSuffix(".jsp");
    return internalResourceViewResolver;
}
}

4. 导包

<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.1.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>3.0-alpha-1</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.2</version>
    </dependency>
    <!--aspectj-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>5.0.2.RELEASE</version>
    </dependency>
    <!--mybatis对spring的支持包-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.3.2</version>
    </dependency>
    <!--数据源和mysql驱动-->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.1.11</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.47</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.1.8.RELEASE</version>
    </dependency>
    <!--test-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>5.1.8.RELEASE</version>
    </dependency>
    <!--jackson-->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.7</version>
    </dependency>
    <!--文件上传的包-->
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.6</version>
    </dependency>
    <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>1.3.3</version>
    </dependency>
</dependencies>

5. 日期格式的转换

public class String2DateConverter implements Converter<String,Date> {
@Override
public Date convert(String s) {
    SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
    try {
        Date date=sdf.parse(s);
        return date;
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return null;
}
}

6. 过滤器的实现

public class MyFirstInterceptor  implements HandlerInterceptor{
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    System.out.println("preHandle");
    return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
    System.out.println("postHandle");
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

}
}

7. 创建UserMapper接口（和上面一样）

8. 创建UserService接口（和上面一样）

9. 创建UserMapperImpl实现类（和上面一样）

10. UserMapper.xml创建（和上面一样）一般通过你工程来完成

11. UserController测试类

@Controller
public class UserController {
@Autowired
UserService userService;
@RequestMapping("user")
@ResponseBody
public  User query(int id, Model model){
    User user = userService.selectByPrimaryKey(id);
    model.addAttribute("user",user.toString());
    return  user;
}
}

14-SSM整合

标签：exce   Fix   beans   事务   springmvc   multipart   rom   rac   连接数   

原文地址：https://www.cnblogs.com/rqy0526/p/11326295.html