springboot 项目跨域配置，前端界面使用js方法访问接口返回数据

川长思鸟来 2022-12-15 12:53 34阅读 0赞

全局跨域配置类，然后java的controller就可以实现跨域访问了。

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();
            corsConfiguration.addAllowedOrigin("*");
            corsConfiguration.addAllowedHeader("*");
            corsConfiguration.addAllowedMethod("*");
            return corsConfiguration;
        }
    
        @Bean
        public CorsFilter corsFilter() {
            UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
            source.registerCorsConfiguration("/**", buildConfig());
            return new CorsFilter(source);
        }
    }

controller类

import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RestController;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    @RestController
    @RequestMapping("test")
    public class TestController {
    
        @RequestMapping("start")
        public String start(String data) {
            return "success: " + data;
        }
    
        @RequestMapping(value = "test", method = RequestMethod.POST)
        public String start2(HttpServletRequest request,
                             HttpServletResponse response,
                             @RequestBody Object data) {
            return "success";
        }
    }

javascript:

以上