前后端传参经常容易出错，本文记录开发springBoot+Mybatis-plus+vuecli项目中出现的传参问题及解决办法
 

1.前后端没有跨域配置，报错

解决方法：后端进行跨域配置，拷贝CorsConfig类

package com.example.xxxx.config;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;/*** 全局配置可跨域访问api接口*/@Configuration
public class CorsConfig {private CorsConfiguration buildConfig() {CorsConfiguration corsConfiguration = new CorsConfiguration();corsConfiguration.addAllowedOrigin("*"); //允许任何域名corsConfiguration.addAllowedHeader("*"); //允许任何头corsConfiguration.addAllowedMethod("*"); //允许任何方法return corsConfiguration;}@Beanpublic CorsFilter corsFilter() {UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();source.registerCorsConfiguration("/**", buildConfig()); //注册return new CorsFilter(source);}
}