本示例主要演示自定义HandlerMethodArgumentResolver不生效原因与解法

lyb-geek · lyb-geek · commit 1e2324f6cb6c · 2022-08-13T06:34:24.000+08:00
diff --git a/springboot-argument-resolver/springboot-argument-resolver-framework/src/main/java/com/github/lybgeek/resolver/UserHandlerMethodArgumentResolver.java b/springboot-argument-resolver/springboot-argument-resolver-framework/src/main/java/com/github/lybgeek/resolver/UserHandlerMethodArgumentResolver.java
@@ -23,7 +23,7 @@ public UserHandlerMethodArgumentResolver(HandlerMethodArgumentResolver handlerMe
     @Override
     public boolean supportsParameter(MethodParameter parameter) {
         return parameter.hasParameterAnnotation(RequestBody.class) &&
-                parameter.getParameterType().isAssignableFrom(User.class);
+               User.class.isAssignableFrom(parameter.getParameterType());
     }
 
     @Override

Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@ public UserHandlerMethodArgumentResolver(HandlerMethodArgumentResolver handlerMe`
`23`	`23`	`@Override`
`24`	`24`	`public boolean supportsParameter(MethodParameter parameter) {`
`25`	`25`	`return parameter.hasParameterAnnotation(RequestBody.class) &&`
`26`		`- parameter.getParameterType().isAssignableFrom(User.class);`
	`26`	`+ User.class.isAssignableFrom(parameter.getParameterType());`
`27`	`27`	`}`
`28`	`28`
`29`	`29`	`@Override`