<!DOCTYPEhtml><htmllang="en"xmlns:th="http://www.thymeleaf.org"><!--注意要添加xmlns:th才能添加thymeleaf的标签--><headth:fragment="commonheader"><!--common--><linkhref="css/style.css"th:href="@{/css/style.css}"rel="stylesheet"><linkhref="css/style-responsive.css"th:href="@{/css/style-responsive.css}"rel="stylesheet"> ...</head><body><!-- left side start--><divid="leftmenu"class="left-side sticky-left-side"> ...<divclass="left-side-inner"> ...<!--sidebar nav start--><ulclass="nav nav-pills nav-stacked custom-nav"><li><ath:href="@{/main.html}"><iclass="fa fa-home"></i><span>Dashboard</span></a></li> ...<liclass="menu-list nav-active"><ahref="#"><iclass="fa fa-th-list"></i><span>Data Tables</span></a><ulclass="sub-menu-list"><li><ath:href="@{/basic_table}"> Basic Table</a></li><li><ath:href="@{/dynamic_table}"> Advanced Table</a></li><li><ath:href="@{/responsive_table}"> Responsive Table</a></li><li><ath:href="@{/editable_table}"> Edit Table</a></li></ul></li> ...</ul><!--sidebar nav end--></div></div><!-- left side end--><!-- header section start--><divth:fragment="headermenu"class="header-section"><!--toggle button start--><aclass="toggle-btn"><iclass="fa fa-bars"></i></a><!--toggle button end--> ...</div><!-- header section end--><divid="commonscript"><!-- Placed js at the end of the document so the pages load faster --> <scriptth:src="@{/js/jquery-1.10.2.min.js}"></script> <scriptth:src="@{/js/jquery-ui-1.9.2.custom.min.js}"></script> <scriptth:src="@{/js/jquery-migrate-1.2.1.min.js}"></script> <scriptth:src="@{/js/bootstrap.min.js}"></script> <scriptth:src="@{/js/modernizr.min.js}"></script> <scriptth:src="@{/js/jquery.nicescroll.js}"></script><!--common scripts for all pages--> <scriptth:src="@{/js/scripts.js}"></script></div></body></html>
public class DefaultErrorAttributes implements ErrorAttributes, HandlerExceptionResolver
new ModelAndView("error", model);
@Slf4j
@RestController
public class HelloController {
@RequestMapping("/hello")
public String handle01(){
int i = 1 / 0;//将会抛出ArithmeticException
log.info("Hello, Spring Boot 2!");
return "Hello, Spring Boot 2!";
}
}
@WebServlet(urlPatterns = "/my")
public class MyServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.getWriter().write("66666");
}
}
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@Slf4j
@WebFilter(urlPatterns={"/css/*","/images/*"}) //my
public class MyFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
log.info("MyFilter初始化完成");
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
log.info("MyFilter工作");
chain.doFilter(request,response);
}
@Override
public void destroy() {
log.info("MyFilter销毁");
}
}
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@Slf4j
@WebListener
public class MyServletContextListener implements ServletContextListener {
@Override
public void contextInitialized(ServletContextEvent sce) {
log.info("MySwervletContextListener监听到项目初始化完成");
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
log.info("MySwervletContextListener监听到项目销毁");
}
}
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@ServletComponentScan(basePackages = "com.lun")//
@SpringBootApplication(exclude = RedisAutoConfiguration.class)
public class Boot05WebAdminApplication {
public static void main(String[] args) {
SpringApplication.run(Boot05WebAdminApplication.class, args);
}
}
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ServletRegistrationBean`, `FilterRegistrationBean`, and `ServletListenerRegistrationBean
@Configuration(proxyBeanMethods = true)
public class MyRegistConfig {
@Bean
public ServletRegistrationBean myServlet(){
MyServlet myServlet = new MyServlet();
return new ServletRegistrationBean(myServlet,"/my","/my02");
}
@Bean
public FilterRegistrationBean myFilter(){
MyFilter myFilter = new MyFilter();
// return new FilterRegistrationBean(myFilter,myServlet());
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(myFilter);
filterRegistrationBean.setUrlPatterns(Arrays.asList("/my","/css/*"));
return filterRegistrationBean;
}
@Bean
public ServletListenerRegistrationBean myListener(){
MySwervletContextListener mySwervletContextListener = new MySwervletContextListener();
return new ServletListenerRegistrationBean(mySwervletContextListener);
}
}
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@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE)
@Configuration(proxyBeanMethods = false)
@ConditionalOnWebApplication(type = Type.SERVLET)
@ConditionalOnClass(DispatcherServlet.class)
@AutoConfigureAfter(ServletWebServerFactoryAutoConfiguration.class)
public class DispatcherServletAutoConfiguration {
/*
* The bean name for a DispatcherServlet that will be mapped to the root URL "/"
*/
public static final String DEFAULT_DISPATCHER_SERVLET_BEAN_NAME = "dispatcherServlet";
/*
* The bean name for a ServletRegistrationBean for the DispatcherServlet "/"
*/
public static final String DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME = "dispatcherServletRegistration";
@Configuration(proxyBeanMethods = false)
@Conditional(DefaultDispatcherServletCondition.class)
@ConditionalOnClass(ServletRegistration.class)
@EnableConfigurationProperties(WebMvcProperties.class)
protected static class DispatcherServletConfiguration {
//创建DispatcherServlet类的Bean
@Bean(name = DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)
public DispatcherServlet dispatcherServlet(WebMvcProperties webMvcProperties) {
DispatcherServlet dispatcherServlet = new DispatcherServlet();
dispatcherServlet.setDispatchOptionsRequest(webMvcProperties.isDispatchOptionsRequest());
dispatcherServlet.setDispatchTraceRequest(webMvcProperties.isDispatchTraceRequest());
dispatcherServlet.setThrowExceptionIfNoHandlerFound(webMvcProperties.isThrowExceptionIfNoHandlerFound());
dispatcherServlet.setPublishEvents(webMvcProperties.isPublishRequestHandledEvents());
dispatcherServlet.setEnableLoggingRequestDetails(webMvcProperties.isLogRequestDetails());
return dispatcherServlet;
}
@Bean
@ConditionalOnBean(MultipartResolver.class)
@ConditionalOnMissingBean(name = DispatcherServlet.MULTIPART_RESOLVER_BEAN_NAME)
public MultipartResolver multipartResolver(MultipartResolver resolver) {
// Detect if the user has created a MultipartResolver but named it incorrectly
return resolver;
}
}
@Configuration(proxyBeanMethods = false)
@Conditional(DispatcherServletRegistrationCondition.class)
@ConditionalOnClass(ServletRegistration.class)
@EnableConfigurationProperties(WebMvcProperties.class)
@Import(DispatcherServletConfiguration.class)
protected static class DispatcherServletRegistrationConfiguration {
//注册DispatcherServlet类
@Bean(name = DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME)
@ConditionalOnBean(value = DispatcherServlet.class, name = DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)
public DispatcherServletRegistrationBean dispatcherServletRegistration(DispatcherServlet dispatcherServlet,
WebMvcProperties webMvcProperties, ObjectProvider<MultipartConfigElement> multipartConfig) {
DispatcherServletRegistrationBean registration = new DispatcherServletRegistrationBean(dispatcherServlet,
webMvcProperties.getServlet().getPath());
registration.setName(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME);
registration.setLoadOnStartup(webMvcProperties.getServlet().getLoadOnStartup());
multipartConfig.ifAvailable(registration::setMultipartConfig);
return registration;
}
}
...
}
@Controller
public class UserController {
@Autowired
private UserService userService;
@ResponseBody
@GetMapping("/user/{id}")
public User getUser(@PathVariable("id") Integer id){
return userService.getUser(id);
}
}
@Service
public class UserService {
@Autowired
private UserMapper userMapper;//IDEA下标红线，可忽视这红线
public User getUser(Integer id){
return userMapper.getUser(id);
}
}
@Mapper
public interface UserMapper {
public User getUser(Integer id);
@Select("select * from user where id=#{id}")
public User getUser2(Integer id);
public void saveUser(User user);
@Insert("insert into user(`name`) values(#{name})")
@Options(useGeneratedKeys = true, keyProperty = "id")
public void saveUser2(User user);
}
<?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="com.lun.boot.mapper.UserMapper">
<select id="getUser" resultType="com.lun.boot.bean.User">
select * from user where id=#{id}
</select>
<insert id="saveUser" useGeneratedKeys="true" keyProperty="id">
insert into user(`name`) values(#{name})
</insert>
</mapper>
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@MapperScan("com.lun.boot.mapper")
@SpringBootApplication
public class MainApplication {
public static void main(String[] args) {
SpringApplication.run(MainApplication.class, args);
}
}
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