对象转换小工具

src/main/java/com/example/config/SecurityConfiguration.java

@@ -6,10 +6,12 @@ import com.example.entity.vo.response.AuthorizeV0;
 import com.example.filter.JwtAuthorizeFilter;
 import com.example.service.AccountService;
 import com.example.utils.JwtUtils;
+import com.fasterxml.jackson.databind.util.BeanUtil;
 import jakarta.annotation.Resource;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.beans.BeanUtils;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.access.AccessDeniedException;
@@ -89,11 +91,11 @@ public class SecurityConfiguration {
         User user = (User) authentication.getPrincipal();
         Account account = services.findAccountByNameOrEmail(user.getUsername());
         String token = utils.createJwt(user , account.getId(), account.getUsername());
-        AuthorizeV0 v0 = new AuthorizeV0();
+        AuthorizeV0 v0 = account.asViewObject(AuthorizeV0.class , v -> {
-        v0.setExpire(utils.expireTime());
+            v.setExpire(utils.expireTime());
-        v0.setRole(account.getRole());
+            v.setToken(token);
-        v0.setToken(token);
+        });
-        v0.setUsername(account.getUsername());
+
         response.getWriter().write(RestBean.success(v0).asJsonString());
     }
 

src/main/java/com/example/entity/BaseData.java

@@ -0,0 +1,36 @@
+package com.example.entity;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.util.function.Consumer;
+
+public interface BaseData {
+    default <V> V asViewObject(Class<V> clazz , Consumer<V> consumer){
+        V v = this.asViewObject(clazz);
+        consumer.accept(v);
+        return v;
+    }
+
+
+    default <V> V asViewObject(Class<V> clazz){
+        try {
+            Field[] declaredFirlds = clazz.getDeclaredFields();
+            Constructor<V> constructor = clazz.getConstructor();
+            V v = constructor.newInstance();
+            for (Field declaredField : declaredFirlds) convert(declaredField , v);
+            return v;
+        } catch (ReflectiveOperationException exception) {
+            throw new RuntimeException(exception.getMessage());
+        }
+    }
+    private void convert(Field field , Object vo){
+        try {
+            Field source = this.getClass().getDeclaredField(field.getName());
+            field.setAccessible(true);
+            source.setAccessible(true);
+            field.set(vo , source.get(this));
+
+        } catch (IllegalAccessException |NoSuchFieldException e) {
+        }
+    }
+}

src/main/java/com/example/entity/dto/Account.java

@@ -3,6 +3,7 @@ package com.example.entity.dto;
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
+import com.example.entity.BaseData;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 
@@ -11,7 +12,7 @@ import java.util.Date;
 @Data
 @TableName("db_account")
 @AllArgsConstructor
-public class Account {
+public class Account implements BaseData {
     @TableId(type = IdType.AUTO)
     Integer id;
     String username;