主要的代码:
package com.haotian.demo.config;
import org.springframework.context.annotation.Bean;
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 {
@Bean
public WebMvcConfigurer corsConfigurer() {
return new WebMvcConfigurer() {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
.allowedOrigins("*")
.allowCredentials(true)
.allowedMethods("GET","POST")
.exposedHeaders("access-control-allow-headers",
"access-control-allow-methods",
"access-control-allow-origin",
"access-control-max-age",
"X-Frame-Options")
.maxAge(3600);
}
};
}
}```
然后需要在启动类的上面加上一个注解
![在这里插入图片描述](https://img-blog.csdnimg.cn/20190321175212238.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mzg4OTY4MQ==,size_16,color_FFFFFF,t_70)
这样就可以进行ajax的访问了。