增加开发文档和API，修复系统可以被一个用户注册多次的漏洞

src/main/java/com/fjy/spring/controller/RegisterController.java

@@ -2,6 +2,7 @@ package com.fjy.spring.controller;
 
 import com.fjy.spring.domain.TbStudentlist;
 import com.fjy.spring.domain.TbUser;
+import com.fjy.spring.enums.RegisteredEnum;
 import com.fjy.spring.enums.ResultEnum;
 import com.fjy.spring.exception.UserException;
 import com.fjy.spring.properties.ServerProperties;
@@ -48,6 +49,8 @@ public class RegisterController {
         //加密用户密码
         tbUser.setColpassword(new BigInteger(CodingUtil.encryptSHA(tbUser.getColpassword().getBytes())).toString(32));
         if (userService.doRegisterService(tbUser)){
+            //更新用户列表是否注册的标记
+            studentService.UpdateStudentListRegistered(tbUser.getColrealname(),tbUser.getColstudentno());
             return true;
             /*return "redirect:" + request.getScheme() + "://" + request.getServerName() + ":"
                     + serverProperties.getPortNum() + request.getContextPath() + "/index";*/
@@ -70,7 +73,7 @@ public class RegisterController {
     public boolean doCheckStudent(@RequestParam(value = "studentno") String studentno,
                                   @RequestParam(value = "realname") String realname){
         TbStudentlist studentlist = studentService.findByColstudentnoAndColrealname(studentno,realname);
-        if (studentlist!=null)
+        if (studentlist!=null&&studentlist.getRegistered()!= RegisteredEnum.REGISTERED.getCode())
             return true;
         return false;
     }

src/main/java/com/fjy/spring/domain/TbStudentlist.java

@@ -17,4 +17,6 @@ public class TbStudentlist {
 
     private String sex;
 
+    private Integer registered;
+
 }

src/main/java/com/fjy/spring/enums/RegisteredEnum.java

@@ -0,0 +1,18 @@
+package com.fjy.spring.enums;
+
+import lombok.Getter;
+
+@Getter
+public enum RegisteredEnum {
+    REGISTERED(1,"该用户已注册"),
+    UNREGISTERED(0,"该用户未注册"),
+    FORBIDDEN(2,"该用户已被列入黑名单")
+    ;
+    private Integer code;
+    private String msg;
+
+    RegisteredEnum(Integer code, String msg) {
+        this.code = code;
+        this.msg = msg;
+    }
+}

src/main/java/com/fjy/spring/service/StudentService.java

@@ -3,6 +3,7 @@ package com.fjy.spring.service;
 import com.fjy.spring.domain.TbStudent;
 import com.fjy.spring.domain.TbStudentlist;
 import com.fjy.spring.domain.TbUser;
+import com.fjy.spring.enums.RegisteredEnum;
 import com.fjy.spring.repository.TbStudentListRepository;
 import com.fjy.spring.repository.TbStudentRepository;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -26,6 +27,12 @@ public class StudentService {
         return tbStudentListRepository.findByColstudentnoAndColrealname(studentno,realname);
     }
 
+    public TbStudentlist UpdateStudentListRegistered(String realname,String studentno){
+        TbStudentlist studentlist = new TbStudentlist();
+        studentlist = findByColstudentnoAndColrealname(studentno,realname);
+        studentlist.setRegistered(RegisteredEnum.REGISTERED.getCode());
+        return tbStudentListRepository.save(studentlist);
+    }
 
 
 }

src/main/resources/static/js/loginstyle.js

@@ -106,7 +106,7 @@ var Main = {
                     .then(function (response) {
                         console.log(response.data);
                         if (response.data === false) {
-                            return callback(new Error('姓名与学号不匹配'));
+                            return callback(new Error('姓名与学号不匹配或该用户已注册'));
                         } else {
                             callback()
                         }