springboot优雅获取前端参数的方法详解

@GetMapping("/getArticle/{id}")
public Article getArticle(@PathVariable("id") Long id){
    System.out.println("获取到路径中的值为："+id);
    return parmsService.findArticleById(id);
}

@RequestMapping(value = "/addUser/",method = RequestMethod.POST)
public String addUser(String  name,String sex,int age){
    System.out.println("获取到参数中的值为："+name+","+sex+","+age);
    return "添加文章成功";
}

//①User
@Data
public class User {
    private  Integer id;
    private  String name;
    private String sex;
    private  Integer age;
}
 
 
//接收参数方法
@PostMapping("/addnewUser/")
public String addUser(User user){
    System.out.println(user);
    return  "添加用户成功";
}

@PostMapping("/addBook/")
public String addBook(HttpServletRequest request){
    String bookName = request.getParameter("bookName");
    String author = request.getParameter("author");
    System.out.println("获取到参数中的值为："+bookName+","+author);
    return "添加书籍成功";
}

@GetMapping("/getParams")
public String getParms(@RequestParam("param1") String  param1,@RequestParam("param2") String param2){
    System.out.println("获取到参数中的值为："+param1+","+param2);
    return "Param1: " + param1 + ", parm2: " + param2;
}

//① 定义User实体对象
@Data
public class User {
    private  Integer id;
    private  String name;
    private String sex;
    private  Integer age;
}
//② 接收参数
@PostMapping("/addUsers")
public List<User> addUsers(@RequestBody List<User> users){
    System.out.println(""+users);
    return users;
}

@PostMapping("/singleFileUpload")
public String singleFileUpload(@RequestParam("file") MultipartFile file){
    //文件存储路径
    final String BASE_PATH = "E:\\xiezhrspace\\parm-demo\\";
    if(file.isEmpty()){
        return "文件为空";
    }
    //获取文件名
    String fileName = file.getOriginalFilename();
 
    try {
        //新建一个文件路径
        File dest = new File(BASE_PATH + fileName);
        //判断路径是否存在，如果不存在就创建一个
        if(!dest.getParentFile().exists()){
            dest.getParentFile().mkdirs();
        }
        //将上传文件保存到一个目标文件当中
        file.transferTo(dest);
 
    } catch (IOException e) {
        e.printStackTrace();
    }
    return "上传成功";
}