Spring Boot combat the custom URL matching rules

This article first appeared personal website: custom URL matching rules of combat Spring Boot

When building web applications, not all of the URL request follows the default rules. Sometimes, when we want RESTful URL matching delimiters comprises, in this case, you may be referred Spring "delimiter format defined by" "."; Sometimes, we want to identify the presence of a slash. Spring provides an interface for developers to customize on demand.

In previous articles may be customized by the filter program WebConfiguration class, formatting tools, etc., have the same, similar approaches can be arranged "path matching rule" used in this class.

Suppose ISBN format allows delimiter. "" Books division number and revision number, of the form [isbn-number]. [Revision ]

Real

Add WebConfiguration arranged in the corresponding class code as follows:

@Override
public void configurePathMatch(PathMatchConfigurer configurer) {
    configurer.setUseSuffixPatternMatch(false).setUseTrailingSlashMatch(true);
}

By mvn spring-boot:runstarting the application
accesshttp://localhost:8080/books/9781-1234-1111.1

When path matching, pattern matching without using the suffix (*)

accesshttp://localhost:8080/books/9781-1234-1111

Use the correct URL to access the results

analysis

configurePathMatch (PathMatchConfigurer configurer) function allows developers to customize the URL path matching rules based on demand.

configurer.setUseSuffixPatternMatch (false) represents designers want the system will not recognize the URL of external exposure and match. suffix. In this case, it means that Spring will 9781-1234-1111.1 as a isbn * parameter to BookController.
configurer.setUseTrailingSlashMatch (true) Indicates whether the system does not distinguish between URL of the last character is a slash /. In this case, it means http://localhost:8080/books/9781-1234-1111, and http://localhost:8080/books/9781-1234-1111/have the same meaning.

If you need to customize the process path match occurs, you can provide your own custom PathMatcher and UrlPathHelper , but this demand is not common.

Spring Boot 1.x series

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