SpringBoot2.0 以上 WebMvcConfigurerAdapter 方法过时解决办法

梦里梦外; 2023-10-04 15:52 51阅读 0赞

SpringBoot2.0 是基于 spring 5.0 实现的。

在Spring 5.0 中，已经将 WebMvcConfigurerAdapter 抽象类加上 @Deprecated 注解 记为过时。

下面的代码就是过时方法：

我们来看看 WebMvcConfigurerAdapter 方法，上面已经加了@Deprecated 注解

//  
// Source code recreated from a .class file by IntelliJ IDEA  
// (powered by Fernflower decompiler)  
//  
  
package org.springframework.web.servlet.config.annotation;  
  
import java.util.List;  
import org.springframework.format.FormatterRegistry;  
import org.springframework.http.converter.HttpMessageConverter;  
import org.springframework.lang.Nullable;  
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;  
  
/\*\* @deprecated \*/  
@Deprecated  
public abstract class WebMvcConfigurerAdapter implements WebMvcConfigurer \{  
public WebMvcConfigurerAdapter() \{  
\}  
  
public void configurePathMatch(PathMatchConfigurer configurer) \{  
\}  
  
public void configureContentNegotiation(ContentNegotiationConfigurer configurer) \{  
\}  
  
public void configureAsyncSupport(AsyncSupportConfigurer configurer) \{  
\}  
  
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) \{  
\}  
  
public void addFormatters(FormatterRegistry registry) \{  
\}  
  
public void addInterceptors(InterceptorRegistry registry) \{  
\}  
  
public void addResourceHandlers(ResourceHandlerRegistry registry) \{  
\}  
  
public void addCorsMappings(CorsRegistry registry) \{  
\}  
  
public void addViewControllers(ViewControllerRegistry registry) \{  
\}  
  
public void configureViewResolvers(ViewResolverRegistry registry) \{  
\}  
  
public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) \{  
\}  
  
public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers) \{  
\}  
  
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) \{  
\}  
  
public void extendMessageConverters(List<HttpMessageConverter<?>> converters) \{  
\}  
  
public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) \{  
\}  
  
public void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) \{  
\}  
  
@Nullable  
public Validator getValidator() \{  
return null;  
\}  
  
@Nullable  
public MessageCodesResolver getMessageCodesResolver() \{  
return null;  
\}  
\}

现在我们采用新的方法来处理：

方法一(官方推介)：

我们看到，WebMvcConfigurerAdapter 抽象类实现了 WebMvcConfigurer 接口，这里我们只需要将 extends WebMvcConfigurerAdapter 替换为 implements WebMvcConfigurer 即可。代码如下：

方法二(不推介，也过期了)：

继承 WebMvcConfigurationSupport，代码如下：

package com.handlerinterceptor\_demo.handlerinterceptor\_demo.config;  
  
import com.handlerinterceptor\_demo.handlerinterceptor\_demo.interceptors.UserIDHandlerInterceptor;  
import org.springframework.beans.factory.annotation.Autowired;  
import org.springframework.context.annotation.Configuration;  
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;  
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;  
  
/\*\*  
\* @author  
\*/  
  
@Configuration  
public class WebAppConfig extends WebMvcConfigurationSupport\{  
  
@Autowired  
private UserIDHandlerInterceptor userIDHandlerInterceptor;  
  
/\*\*  
\* addPathPatterns 添加拦截规则  
\* excludePathPatterns 排除拦截规则  
\*  
\* @param registry  
\*/  
@Override  
public void addInterceptors(InterceptorRegistry registry) \{  
registry.addInterceptor(userIDHandlerInterceptor).addPathPatterns("/\*\*/\*");  
super.addInterceptors(registry);  
\}  
\}  
PS：Java 毕竟单继承多实现，而且实现接口也是官方推介的做法。所以推介方法一。  
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原文链接：https://blog.csdn.net/qq\_38164123/article/details/80392904