springboot解决ajax跨域问题

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springboot解决ajax跨域问题

新建config包，新建CorsConfig.java类

CorsConfig.java类内容如下

package com.azor.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;

@Configuration
public class CorsConfig {

	private CorsConfiguration buildConfig() {
		CorsConfiguration corsConfiguration = new CorsConfiguration();

		// 可以自行筛选
		corsConfiguration.addAllowedOrigin("*");
		corsConfiguration.addAllowedHeader("*");
		corsConfiguration.addAllowedMethod("*");

		return corsConfiguration;
	}

	@Bean
	public CorsFilter corsFilter() {
		UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();

		source.registerCorsConfiguration("/**", buildConfig());

		return new CorsFilter(source);
	}
}

前端调用

$.ajax({
   			"async" : false,
   			"url" : "http://localhost:8080/miniProgram/data_upload",
   			"type" : "POST",
   			"data" : {
   				"paramMap": JSON.stringify(paramMap)
   			},
   			"dataType" : "json",
   			"success": function(res){
   				console.log(res);
   				if(res.flag != null && res.flag) {
					alert("申请成功!请等待工作人员与您联系");
					location.reload();
   				} else {
   					alert("申请失败," + res.message);
   				}
   			}
}); 

完成！