The server responded with a 400 Bad Request status code since the request does not meet the expected header requirement specified in the@RequestMappingannotation. Specify Content Type with “consumes” and “pr
Above annotation can also be written as @RequestMapping("/method0"). On a side note, I am using @ResponseBody to send the String response for this web request, this is done to keep the example simple. Like I always do, I will use these methods in Spring MVC application and test them...
检查Spring版本:如果你的Spring版本与RequestMapping注解不兼容,也可能会导致这个错误。请确保你的Spring版本与RequestMapping注解兼容。 检查导入的包:确保你的代码中正确导入了org.springframework.web.bind.annotation.RequestMapping。你可以在代码文件的顶部添加以下导入语句: import org.springframework.web.bind.annotation....
总是导致不明确的映射错误EN如果您不手动注册BasicErrorControllerbean，而Spring Boot中有/error端点，Sprin...
使用Spring MVC的同学都知道,要想使@RequestMapping注解生效,必须得在xml配置文件中配置< mvc:annotation-driven/>。因此我们以此为突破口开始分析。 在Spring系列(一)文中我们知道xml配置文件解析完的下一步就是解析bean。在这里我们继续对那个方法展开分析。如下: protected void parseBeanDefinitions(Element root, Be...
使用Spring MVC的同学都知道,要想使@RequestMapping注解生效,必须得在xml配置文件中配置< mvc:annotation-driven/>。因此我们以此为突破口开始分析。 在bean 解析、注册、实例化流程源码剖析文中我们知道xml配置文件解析完的下一步就是解析bean。在这里我们继续对那个方法展开分析。如下: ...
AnnotatedElementUtils.hasAnnotation(beanType, RequestMapping.class)); } detectHandlerMethods方法就是真正开始解析Method的逻辑。通过解析Method上的 @RequestMapping或者其他派生的注解。生成请求信息。 注意这个请求信息里面也是有很多逻辑的不过不是本篇讨论的重点,就不说了。稍微提一下。根据规则来匹配url逻辑就在这里...
如果想要 RequestMapping 注解生效,必须在xml文件中配置,< mvc:annotation-driven/>。 配置完 xml 之后 ,下一步解析 bean。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 protectedvoidparseBeanDefinitions(Element root,BeanDefinitionParserDelegate delegate){//如果该元素属于默认命名空间走此逻辑。Spring的默...
In this tutorial, we’ll focus on one of the main annotations in Spring MVC: @RequestMapping. Simply put, the annotation is used to map web requests to Spring Controller methods. Further reading: Serve Static Resources with Spring How to map and handle static resources with Spring MVC - ...
The Spring MVC @RequestMapping annotation is capable of handling HTTP request methods, such as GET, PUT, POST, DELETE, and PATCH. By default, all requests are assumed to be of HTTP GET type. In order to define a request mapping with a specific HTTP method, you need to declare the HTTP...