在vue2.0下安装axios_vue2安装axios

1.安装axios
在项目终端下 输入

	npm install axios --save
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2.在main.js全局引入axios

import axios from 'axios';
Vue.prototype.$axios=axios;
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3.重写WebMvcConfigurer(全局跨域)

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class CorsConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                //是否发送Cookie
                .allowCredentials(true)
                //放行哪些原始域
                .allowedOriginPatterns("*")
                .allowedMethods(new String[]{"GET", "POST", "PUT", "DELETE"})
                .allowedHeaders("*")
                .exposedHeaders("*");
    }
}
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