🔧 添加跨域配置

src/main/java/cn/bunny/config/CorsConfig.java

@@ -0,0 +1,19 @@
+package cn.bunny.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class CorsConfig implements WebMvcConfigurer {
+
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")  // 所有接口
+                .allowedOrigins("*") // 允许所有来源
+                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS") // 允许方法
+                .allowedHeaders("*") // 允许所有头
+                // .allowCredentials(true) // 允许凭证
+                .maxAge(3600); // 预检请求缓存时间
+    }
+}

src/main/java/cn/bunny/controller/WebController.java

@@ -5,7 +5,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 
 @Controller
 public class WebController {
-
+ 
     @GetMapping("/")
     public String indexPage() {
         return "redirect:/database";