当我的 Controller 中进行RequestMapping时,我能够将一个html文件映射到“/”,另一个映射到“/users”。但是,尝试映射到“/users/”或“/users/test”将不起作用。在控制台中,它会说端点已映射,但在尝试访问它时,我会收到 404 错误页面。
package com.bridge.Bitter.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class BitterController {
//works
@RequestMapping(value="/")
public String getMainPage(){
return "main.html";
}
//works
@RequestMapping(value="/users")
public String getUsersPage(){
return "users.html";
}
//doesn't work, Whitelabel error page
@RequestMapping(value="/users/")
public String getUsersSlashPage(){
return "users.html";
}
//doesn't work, Whitelabel error page
@RequestMapping(value="/users/test")
public String getUsersTestPage(){
return "users.html";
}
}
我的application.properties仅包含“spring.data.rest.basePath=/api”。
如果我从 @Controller 更改为 @Rest Controller,则会发生以下情况:
package com.bridge.Bitter.controllers;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMapping;
@RestController
public class BitterController {
//works
@RequestMapping(value="/")
public String getMainPage(){
return "main.html";
}
//returns a webpage with the text "users.html" on it instead of serving the html
@RequestMapping(value="/users")
public String getUsersPage(){
return "users.html";
}
//returns a webpage with the text "users.html" on it instead of serving the html
@RequestMapping(value="/users/")
public String getUsersSlashPage(){
return "users.html";
}
//returns a webpage with the text "users.html" on it instead of serving the html
@RequestMapping(value="/users/test")
public String getUsersTestPage(){
return "users.html";
}
}
将函数从返回字符串更改为返回
new ModelAndView("user.html")
适用于/users,但对于/users/和/users/test 会出现 404 错误。
您正尝试两次映射同一条路径。/users 的处理方式与/users/相同,因此 Spring 无法解析哪个 Controller 方法应处理该请求。
你可以试试这个:
package com.bridge.Bitter.controllers;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class BitterController {
@RequestMapping("/")
public String getMainPage(){
return "main.html";
}
@RequestMapping("/users")
public String getUsersPage(){
return "users.html";
}
@RequestMapping("/users/test")
public String getUsersTestPage(){
return "users.html";
}
}
另一方面,当您使用 @RestController annotation 时,您总是返回 JSON 格式的响应文本,这就是为什么您总是得到相同的结果。
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