增加拦截器、跨域、页面跳转的配置

src/main/java/com/founder/config/DefaultViewConfig.java

+package com.founder.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.Ordered;
+import org.springframework.format.FormatterRegistry;
+import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.validation.MessageCodesResolver;
+import org.springframework.validation.Validator;
+import org.springframework.web.method.support.HandlerMethodArgumentResolver;
+import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
+import org.springframework.web.servlet.HandlerExceptionResolver;
+import org.springframework.web.servlet.config.annotation.*;
+
+import java.util.List;
+
+/**
+ * @Author yanru
+ * @Date 2020/9/318:49
+ */
+@Configuration
+public class DefaultViewConfig implements WebMvcConfigurer {
+
+    /**
+     * 页面跳转
+     * @param registry
+     */
+    @Override
+    public void addViewControllers(ViewControllerRegistry registry) {
+        registry.addViewController("/login").setViewName("login/login");
+        registry.addViewController("/loginFail").setViewName("login/loginFail");
+        registry.addViewController("/").setViewName("login/login");
+        registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
+        WebMvcConfigurer.super.addViewControllers(registry);
+    }
+
+    /**
+     * 拦截器
+     * @param registry
+     */
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        registry.addInterceptor(new LoginInterceptor()).
+                addPathPatterns("/**").
+                excludePathPatterns("/login");
+    }
+
+    /**
+     * 跨域
+     * @param registry
+     */
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowedOrigins("*")
+                .allowCredentials(true)
+                .allowedMethods("GET", "POST", "DELETE", "PUT")
+                .maxAge(3600);
+    }
+
+    /**
+     * 自定义静态资源映射目录
+     * @param registry
+     */
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+        //registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
+
+    }
+
+    @Override
+    public void configurePathMatch(PathMatchConfigurer configurer) {
+
+    }
+
+    @Override
+    public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
+
+    }
+
+    @Override
+    public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
+
+    }
+
+    @Override
+    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
+
+    }
+
+    @Override
+    public void addFormatters(FormatterRegistry registry) {
+
+    }
+
+
+    @Override
+    public void configureViewResolvers(ViewResolverRegistry registry) {
+
+    }
+
+    @Override
+    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
+
+    }
+
+    @Override
+    public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> handlers) {
+
+    }
+
+    @Override
+    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
+
+    }
+
+    @Override
+    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
+
+    }
+
+    @Override
+    public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
+
+    }
+
+    @Override
+    public void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
+
+    }
+
+    @Override
+    public Validator getValidator() {
+        return null;
+    }
+
+    @Override
+    public MessageCodesResolver getMessageCodesResolver() {
+        return null;
+    }
+}

src/main/java/com/founder/config/LoginInterceptor.java

+package com.founder.config;
+
+import org.springframework.web.servlet.HandlerInterceptor;
+
+/**
+ * @Author yanru
+ * @Date 2020/9/318:49
+ */
+public class LoginInterceptor implements HandlerInterceptor {
+}

src/main/resources/application.properties

@@ -2,6 +2,8 @@
 spring.profiles.active=dev
 
 spring.mvc.static-path-pattern=/**
+#静态资源位置，例：http://127.0.0.1:8080/images/bg.jpg  去resources下static或templates文件夹下找 路径为/images/bg.jpg的照片
+#如果访问 http://127.0.0.1:8080/static/images/bg.jpg  显然static或templates下没有这样的路径，所以没有
 spring.resources.static-locations=classpath:/static/,classpath:/templates/
 
 spring.mvc.view.prefix=classpath:/templates/

src/main/resources/templates/test.html

@@ -8,7 +8,7 @@
 <body>
 <div>这是一个页面</div>
 <input th:value="${username}"/>
-<img src="/static/images/bg.jpg" />
+<img src="/images/bg.jpg" />
 </body>
 
 </html>
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