SSM整合-配置类版
目录
- 一、导入依赖
- 二、SSM整合
-
- 1.1 WebInit配置类
- 1.2 SpringMvcConfig配置类
- 1.3 SpringConfig配置类
- 1.4 JdbcConfig配置类
- 1.5 MybatisConfig配置类
- 1.6 mybatis-config.xml配置
- 1.7 log4j.xml配置
- 1.8 目录结构
一、导入依赖
<properties>
<spring.version>5.3.1spring.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.5.7version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>2.0.6version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>1.0.9version>
dependency>
<dependency>
<groupId>junitgroupId>I
<artifactId>junitartifactId>
<version>4.12version>
<scope>testscope>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>8.0.16version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>1.2.17version>
dependency>
<dependency>
<groupId>com.github.pagehelpergroupId>
<artifactId>pagehelperartifactId>
<version>5.2.0version>
dependency>
<dependency>
<groupId>ch.qos.logbackgroupId>
<artifactId>logback-classicartifactId>
<version>1.2.3version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.1.0version>
<scope>providedscope>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>2.12.1version>
dependency>
<dependency>
<groupId>commons-fileuploadgroupId>
<artifactId>commons-fileuploadartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>org.thymeleafgroupId>
<artifactId>thymeleaf-spring5artifactId>
<version>3.0.12.RELEASEversion>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>1.18.20version>
<scope>providedscope>
dependency>
dependencies>
二、SSM整合
1.1 WebInit配置类
此文件代替了web.xml
/*
* 此配置类代替了web.xml配置文件
*
* */
public class WebInit extends AbstractAnnotationConfigDispatcherServletInitializer {
//设置一个配置类代替Spring的配置文件
protected Class<?>[] getRootConfigClasses() {
return new Class[]{SpringConfig.class};
}
//设置一个配置类代替SpringMvc的配置文件
protected Class<?>[] getServletConfigClasses() {
return new Class[]{SpringMvcConfig.class};
}
//设置SpringMVC的前端控制器Dispatcherservlet的url-pattern
protected String[] getServletMappings() {
return new String[]{"/"};
}
//设置当前的过滤器
@Override
protected Filter[] getServletFilters() {
//创建编码过滤器
CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter("UTF-8",true);
//创建处理请求方式的过滤器
HiddenHttpMethodFilter hiddenHttpMethodFilter = new HiddenHttpMethodFilter();
return new Filter[]{characterEncodingFilter,hiddenHttpMethodFilter};
}
}
1.2 SpringMvcConfig配置类
此文件代替了springmvc.xml
前后端分离项目可以不用配置视图解析器和模板引擎
/*
* 此文件代替了springmvc的配置文件
* 扫描组件、视图解析器、默认的servlet. mvc 的注解驱动
视图控制器、文件上传解析器、拦截器、异常解析器
* */
//将类标识为配置类
@Configuration
//扫描组件
@ComponentScan({"com.lx.controller","com.lx.config"})
//开启mvc注解驱动
@EnableWebMvc
//@Order(2)
public class SpringMvcConfig implements WebMvcConfigurer {
//默认的servlet处理静态资源
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
//设置视图控制器
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("index");
}
//配置文件上传解析器
@Bean//@Bean注解可以将标识的方法的返回值作为bean进行管理,bean的id为方法的方法名
public CommonsMultipartResolver multipartResolver() {
return new CommonsMultipartResolver();
}
//配置拦截器
public void addInterceptors(InterceptorRegistry registry) {
FirstInterceptor firstInterceptor = new FirstInterceptor();
registry.addInterceptor(firstInterceptor).addPathPatterns("/**");
}
//配置异常处理器
public void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
SimpleMappingExceptionResolver simpleMappingExceptionResolver = new SimpleMappingExceptionResolver();
Properties prop = new Properties();
prop.setProperty("java.lang.ArithmeticException", "error");
simpleMappingExceptionResolver.setExceptionMappings(prop);
simpleMappingExceptionResolver.setExceptionAttribute("ex");
resolvers.add(simpleMappingExceptionResolver);
}
//配置生成模板解析器
@Bean
public ITemplateResolver templateResolver(WebApplicationContext webApplicationContext) {
//ServletContextTemplateResolver需要一个ServletContext作为构造参数，可通过WebApplicationContext的方法获得
ServletContextTemplateResolver templateResolver =
new ServletContextTemplateResolver(webApplicationContext.getServletContext());
templateResolver.setPrefix("/WEB-INF/templates/");
templateResolver.setSuffix(".html");
templateResolver.setCharacterEncoding("UTF-8");
templateResolver.setTemplateMode(TemplateMode.HTML);
return templateResolver;
}
//生成模板引擎并为模板引擎注入模板解析器
@Bean
public SpringTemplateEngine templateEngine(ITemplateResolver templateResolver) {
SpringTemplateEngine templateEngine = new SpringTemplateEngine();
templateEngine.setTemplateResolver(templateResolver);
return templateEngine;
}
//生成视图解析器并为解析器注入模板引擎
@Bean
public ViewResolver viewResolver (SpringTemplateEngine templateEngine) {
ThymeleafViewResolver viewResolver = new ThymeleafViewResolver() ;
viewResolver.setCharacterEncoding("UTF-8");
viewResolver.setTemplateEngine(templateEngine);
return viewResolver ;
}
}
1.3 SpringConfig配置类
此文件用代替了spring.xml
@Configuration
//扫描除控制层组件
@ComponentScan(value = "com.lx",excludeFilters = {
@ComponentScan.Filter(type = FilterType.ANNOTATION,value = {Controller.class})
})
//开启事务管理
@EnableTransactionManagement
//导入jdbc配置文件
@PropertySource("classpath:jdbc.properties")
//导入配置类
@Import({JdbcConfig.class, MybatisConfig.class})
public class SpringConfig {
}
1.4 JdbcConfig配置类
此文件用来创建Druid数据源以及事务注解驱动
public class JdbcConfig {
@Value("${jdbc.driver}")
private String driver;
@Value("${jdbc.url}")
private String url;
@Value("${jdbc.username}")
private String username;
@Value("${jdbc.password}")
private String password;
//配置数据源
@Bean
public DruidDataSource dataSource(){
DruidDataSource dataSource = new DruidDataSource();
dataSource.setDriverClassName(driver);
dataSource.setUrl(url);
dataSource.setUsername(username);
dataSource.setPassword(password);
return dataSource;
}
//开启事务管理注解驱动
@Bean
public PlatformTransactionManager transactionManager(DruidDataSource dataSource){
DataSourceTransactionManager dst = new DataSourceTransactionManager(dataSource);
return dst;
}
}
1.5 MybatisConfig配置类
此文件用来配置mybatis
public class MybatisConfig {
@Bean
public SqlSessionFactoryBean sqlSessionFactoryBean(DruidDataSource dataSource,WebApplicationContext webApplicationContext){
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource);
sqlSessionFactoryBean.setConfigLocation(webApplicationContext.getResource("classpath:mybatis-config.xml"));
sqlSessionFactoryBean.setTypeAliasesPackage("com.lx.pojo");
//设置分页插
PageInterceptor pageInterceptor = new PageInterceptor();
sqlSessionFactoryBean.setPlugins(pageInterceptor);
return sqlSessionFactoryBean;
}
@Bean
public MapperScannerConfigurer mapperScannerConfigurer(){
MapperScannerConfigurer scannerConfigurer = new MapperScannerConfigurer();
scannerConfigurer.setBasePackage("com.lx.mapper");
return scannerConfigurer;
}
}
1.6 mybatis-config.xml配置
DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
settings>
configuration>
1.7 log4j.xml配置
DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
<param name="Encoding" value="UTF-8" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p %d{MM-dd HH:mm:ss,SSS} %m (%F:%L) \n" />
layout>
appender>
<logger name="java.sql">
<level value="debug" />
logger>
<logger name="org.apache.ibatis">
<level value="info" />
logger>
<root>
<level value="debug" />
<appender-ref ref="STDOUT" />
root>
log4j:configuration>
1.8 目录结构
