diff --git a/pom.xml b/pom.xml
index 8eefb33b..2134e8d8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -65,6 +65,11 @@
             <artifactId>lombok</artifactId>
             <optional>true</optional>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-jpa</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
diff --git a/src/main/java/cn/lihongjie/coal/config/RResponseBodyAdvice.java b/src/main/java/cn/lihongjie/coal/config/RResponseBodyAdvice.java
new file mode 100644
index 00000000..891329dc
--- /dev/null
+++ b/src/main/java/cn/lihongjie/coal/config/RResponseBodyAdvice.java
@@ -0,0 +1,38 @@
+package cn.lihongjie.coal.config;
+
+import cn.lihongjie.coal.dto.R;
+import org.springframework.core.MethodParameter;
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.http.server.ServerHttpRequest;
+import org.springframework.http.server.ServerHttpResponse;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;
+
+@RestControllerAdvice
+public class RResponseBodyAdvice implements ResponseBodyAdvice<Object> {
+
+    @Override
+    public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
+
+        return true;
+
+
+    }
+
+    @Override
+    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
+
+        if (!selectedContentType.includes(MediaType.APPLICATION_JSON)) {
+            return body;
+        }
+
+
+        if (body instanceof R<?>) {
+            return body;
+        }
+
+        return R.success(body);
+    }
+}
diff --git a/src/main/java/cn/lihongjie/coal/controller/CoalController.java b/src/main/java/cn/lihongjie/coal/controller/CoalController.java
index 9134e642..075229d0 100644
--- a/src/main/java/cn/lihongjie/coal/controller/CoalController.java
+++ b/src/main/java/cn/lihongjie/coal/controller/CoalController.java
@@ -26,17 +26,16 @@ public class CoalController {
 
 
     @PostMapping("/blend")
-    public R<CoalBlendResult> blend(@RequestBody CoalBlendRequest request){
+    public CoalBlendResult blend(@RequestBody CoalBlendRequest request){
 
-        return R.success(coalService.blend(request));
+        return coalService.blend(request);
 
     }
 
     @PostMapping("/params")
-    public R<List<CoalParameterDef>> params(){
+    public List<CoalParameterDef> params(){
 
-        throw new BizException();
-//        return R.success(coalService.paramDefs());
+        return coalService.paramDefs();
 
     }