SpringBoot如何设置没有注释的Filter的顺序

问题描述

如果我像这样做的话

$ $ $ $ $ $ $ $ $ $ $ $ b $ @ $ {
@Order（Ordered.HIGHEST_PRECEDENCE）
public class CorsFilter implements Filter {


$ b我可以通过在Spring的ServletHandler.java中放置一个断点来验证它的位置。

  chain = getFilterChain（baseRequest，target，servlet_holder）; 
  

我只是想知道不是使用 @Componenent和@Order ，而是定义Filter bean的Application上下文。
如何设置过滤器的顺序？

解决方案

请参阅示例：
在您的类ServletInitializer ：

  @Bean 
 FilterRegistrationBean requestLogFilter（）{$ b $ final FilterRegistrationBean reg = new FilterRegistrationBean（createRequestLogFilter ））; 
 reg.addUrlPatterns（/ *）; 
 reg.setOrder（1）; //定义过滤器执行顺序
 return reg; 
 
 $ b $Bean $ b $ public RequestLogFilter createRequestLogFilter（）{
 return new RequestLogFilter（）; 
} 
  

我的过滤器名称是requestLogFilter

警告：请勿在类Filter中使用@Component注释。

I'm trying to insert (at first position) a simple custom Cors filter inside the spring filter chain.

If I do it like this

@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class CorsFilter implements Filter {

it works perfectlyI can verify it by putting a breakpoint in Spring's ServletHandler.java where there the line

chain=getFilterChain(baseRequest, target, servlet_holder);

I was just wondering if I wish not to use @Componenent and @Order and instead defining the Filter bean the Application context. How can I set the order of the filters ?

解决方案

See example:In your class ServletInitializer:

@Bean
 public FilterRegistrationBean requestLogFilter() {
        final FilterRegistrationBean reg = new FilterRegistrationBean(createRequestLogFilter());
        reg.addUrlPatterns("/*");
        reg.setOrder(1); //defines filter execution order
        return reg;
 }

 @Bean
 public RequestLogFilter createRequestLogFilter(){
        return new RequestLogFilter();
 }

the name of my filter is "requestLogFilter"

Warning: Don't use @Component annotation at the class Filter.

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