前端vue打包项目,如何解决跨域问题

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("/**")
            .allowedOrigins("*")
            .allowCredentials(true)
            .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
            .maxAge(3600);
    }
    
}

import org.springframework.context.annotation.Configuration;
import org.springframework.Http.HttpHeaders;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 
@Configuration
public class LakeAppConfigurer extends WebMvcConfigurerAdapter {
 
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowCredentials(true)
                .allowedHeaders("*")
                .allowedMethods("GET", "POST", "DELETE", "PUT", "OPTIONS")
                .exposedHeaders(HttpHeaders.SET_COOKIE).maxAge(3600L)
                .maxAge(3600);
    }
}

proxyTable: { //设置代理
'/api': { //使用"/api"来代替跨域地址139.xxx.xx
target: 'http://139.xxx.xx', //源地址
changeOrigin: true, //改变源
pathRewrite: { //路径重写
'^/api': 'http://139.xxx.xx'
}
}
},

module.exports = merge(prodEnv, {
node_ENV: '"development"',
API_HOST: '"/api"' // 配置代理路径的符号，增加的内容
})

module.exports = {
NODE_ENV: '"production"',
API_HOST: '"http://139.xxx.xx"' // 生产环境地址，增加的内容
}

//process.env.API_HOST 获取当前环境的api地址
methods:{
getData: function(){
this.$http.get(process.env.API_HOST + '/aiaaScadaSys/MonitorDB/info').then((response)=>{
this.$data.data_jianhuyi = response.body[0];
console.log(this.data_jianhuyi);
}, (response)=>{
return response.JSON();
});
},
}