Access to XMLHttpRequest at 'xxx' from origin 'xxx' has been been blocked by CORS policy

小咪咪 2023-06-25 10:08 29阅读 0赞

前端出现Access to XMLHttpRequest at ‘xxx’ from origin ‘xxx’ has been been blocked by CORS policy错误  
解决方法  
在SpringBoot后台接口上加上 @CrossOrigin  
例如

import com.example.demo.bean.Admin;
    import com.example.demo.service.Imap.AdminService;
    import com.example.demo.utils.Message;
    import com.example.demo.utils.MessageUtil;
    import io.swagger.annotations.*;
    import org.springframework.web.bind.annotation.*;
    
    import javax.annotation.Resource; @Api(description = "用户相关接口") //@CrossOrigin 跨域请求 @CrossOrigin @RestController @RequestMapping("/Admin") public class AdminController { 
        @Resource
        private AdminService adminService;
    
        @ApiOperation(value ="查询所有用户",notes="" )
        @ApiResponses(value = { 
                @ApiResponse(code = 200, message = "请求已完成"),
                @ApiResponse(code = 400, message = "请求中有语法问题，或不能满足请求"),
                @ApiResponse(code = 401, message = "未授权客户机访问数据"),
                @ApiResponse(code = 403, message = "资源不可用"),
                @ApiResponse(code = 404, message = "服务器找不到给定的资源；文档不存在"),
                @ApiResponse(code = 500, message = "服务器不能完成请求")
        })

Access to XMLHttpRequest at 'xxx' from origin 'xxx' has been been blocked by CORS policy

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