返回对象拦截处理R对象

src/main/java/com/sfa/gen/config/advice/ControllerResponseAdvice.java

+package com.sfa.gen.config.advice;
+
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.sfa.common.core.domain.R;
+import com.sfa.common.core.web.domain.AjaxResult;
+import org.springframework.core.MethodParameter;
+import org.springframework.http.MediaType;
+import org.springframework.http.server.ServerHttpRequest;
+import org.springframework.http.server.ServerHttpResponse;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;
+
+/**
+ * @author : liqiulin
+ * @date : 2024-10-28 17
+ * @describe :自动封装
+ */
+@RestControllerAdvice
+public class ControllerResponseAdvice implements ResponseBodyAdvice<Object>{
+
+    /**
+     * response是R类型或者注释了NotControllerResponseAdvice都不进行包装
+     */
+    @Override
+    public boolean supports(MethodParameter methodParameter, Class converterType) {
+        if (methodParameter.getParameterType().isAssignableFrom(AjaxResult.class)) {
+            return false;
+        }
+        return !methodParameter.getParameterType().isAssignableFrom(R.class);
+    }
+
+    @Override
+    public Object beforeBodyWrite(Object body, MethodParameter methodParameter, MediaType selectedContentType, Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
+        // String类型不能直接包装
+        if (methodParameter.getGenericParameterType().equals(String.class)) {
+            ObjectMapper objectMapper = new ObjectMapper();
+            try {
+                // 将数据包装在ResultVo里后转换为json串进行返回
+                return objectMapper.writeValueAsString(R.ok(body));
+            } catch (JsonProcessingException e) {
+                throw new RuntimeException();
+            }
+        }
+        // 包装成R返回
+        return R.ok(body);
+    }
+}