Spring-Boot框架拦截器对请求进行拦截处理------Spring-Boot框架

桃扇骨 2024-02-28 02:11 42阅读 0赞

>     package com.powernode.springbootvue.controller;
>     
>     import com.powernode.springbootvue.entity.User;
>     import jakarta.servlet.http.HttpServletRequest;
>     import org.springframework.web.bind.annotation.*;
>     import org.springframework.web.multipart.MultipartFile;
>     
>     import java.io.File;
>     import java.io.IOException;
>     
>     @RestController
>     public class ParamsController
>     {
>         @RequestMapping("/upload")
>         public String up(String nickname, MultipartFile photo, HttpServletRequest request)
>         {
>             System.out.println(nickname);
>             System.out.println(photo.getOriginalFilename());
>             System.out.println(photo.getContentType());
>             System.out.println(System.getProperty("user.dir"));
>             String path = request.getServletContext().getRealPath("/upload/");
>             System.out.println(path);
>             try {
>                 saveFile(photo,path);
>             } catch (IOException e) {
>                 throw new RuntimeException(e);
>             }
>             return "上传成功";
>         }
>         public void saveFile(MultipartFile photo,String path) throws IOException {
>             File dir = new File(path);
>             if(!dir .exists())
>             {
>                 dir.mkdir();
>             }
>             File file = new File(path + photo.getOriginalFilename());
>             photo.transferTo(file);
>         }
>         @RequestMapping("/user/helloGet")
>         public String helloGet(@RequestParam(value = "nickname",required = false) String name)
>         {
>             return name;
>         }
>         @RequestMapping("/user/helloPost")
>         public String helloPost(@RequestParam(value = "nickname",required = false) String name,String password)
>         {
>             System.out.println(name + password);
>             return name;
>         }
>         @RequestMapping(value = "/PostTest",method = RequestMethod.POST)
>         public void PostTest(User user)
>         {
>             System.out.println(user.toString());
>         }
>         @RequestMapping(value = "/PostTest1",method = RequestMethod.POST)
>         //如果前端回传的json类型的数据,需要添加上@RequestBody这个注解,否则无法接收
>         public void PostTest1(@RequestBody User user)
>         {
>             System.out.println(user.toString());
>         }
>         @RequestMapping("/user/**")
>         public String test()
>         {
>             return "通配符请求";
>         }
>     }
> 
>     package com.powernode.springbootvue.controller;
>     
>     import com.powernode.springbootvue.entity.User;
>     import jakarta.servlet.http.HttpServletRequest;
>     import org.springframework.web.bind.annotation.*;
>     import org.springframework.web.multipart.MultipartFile;
>     
>     import java.io.File;
>     import java.io.IOException;
>     
>     @RestController
>     public class ParamsController
>     {
>         @RequestMapping("/upload")
>         public String up(String nickname, MultipartFile photo, HttpServletRequest request)
>         {
>             System.out.println(nickname);
>             System.out.println(photo.getOriginalFilename());
>             System.out.println(photo.getContentType());
>             System.out.println(System.getProperty("user.dir"));
>             String path = request.getServletContext().getRealPath("/upload/");
>             System.out.println(path);
>             try {
>                 saveFile(photo,path);
>             } catch (IOException e) {
>                 throw new RuntimeException(e);
>             }
>             return "上传成功";
>         }
>         public void saveFile(MultipartFile photo,String path) throws IOException {
>             File dir = new File(path);
>             if(!dir .exists())
>             {
>                 dir.mkdir();
>             }
>             File file = new File(path + photo.getOriginalFilename());
>             photo.transferTo(file);
>         }
>         @RequestMapping("/user/helloGet")
>         public String helloGet(@RequestParam(value = "nickname",required = false) String name)
>         {
>             return name;
>         }
>         @RequestMapping("/user/helloPost")
>         public String helloPost(@RequestParam(value = "nickname",required = false) String name,String password)
>         {
>             System.out.println(name + password);
>             return name;
>         }
>         @RequestMapping(value = "/PostTest",method = RequestMethod.POST)
>         public void PostTest(User user)
>         {
>             System.out.println(user.toString());
>         }
>         @RequestMapping(value = "/PostTest1",method = RequestMethod.POST)
>         //如果前端回传的json类型的数据,需要添加上@RequestBody这个注解,否则无法接收
>         public void PostTest1(@RequestBody User user)
>         {
>             System.out.println(user.toString());
>         }
>         @RequestMapping("/user/**")
>         public String test()
>         {
>             return "通配符请求";
>         }
>     }

>     package com.powernode.springbootvue.interceptor;
>     
>     import jakarta.servlet.http.HttpServletRequest;
>     import jakarta.servlet.http.HttpServletResponse;
>     import org.springframework.web.servlet.HandlerInterceptor;
>     
>     public class LoginInterceptor implements HandlerInterceptor
>     {
>         @Override
>         public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
>             System.out.println("LoginInterceptor");
>             return false;
>         }
>     }
> 
>     package com.powernode.springbootvue.interceptor;
>     
>     import jakarta.servlet.http.HttpServletRequest;
>     import jakarta.servlet.http.HttpServletResponse;
>     import org.springframework.web.servlet.HandlerInterceptor;
>     
>     public class LoginInterceptor implements HandlerInterceptor
>     {
>         @Override
>         public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
>             System.out.println("LoginInterceptor");
>             return false;
>         }
>     }

>     package com.powernode.springbootvue.config;
>     
>     import com.powernode.springbootvue.interceptor.LoginInterceptor;
>     import org.springframework.context.annotation.Configuration;
>     import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
>     import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
>     @Configuration
>     public class WebConfig implements WebMvcConfigurer
>     {
>         //增加拦截器方法
>         @Override
>         public void addInterceptors(InterceptorRegistry registry) {
>             registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/user/**");
>         }
>     }
> 
>     package com.powernode.springbootvue.config;
>     
>     import com.powernode.springbootvue.interceptor.LoginInterceptor;
>     import org.springframework.context.annotation.Configuration;
>     import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
>     import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
>     @Configuration
>     public class WebConfig implements WebMvcConfigurer
>     {
>         //增加拦截器方法
>         @Override
>         public void addInterceptors(InterceptorRegistry registry) {
>             registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/user/**");
>         }
>     }

>     spring.servlet.multipart.max-file-size=10MB
>     spring.servlet.multipart.max-request-size=10MB
>     spring.web.resources.static-locations=/upload/
> 
>     spring.servlet.multipart.max-file-size=10MB
>     spring.servlet.multipart.max-request-size=10MB
>     spring.web.resources.static-locations=/upload/