SpringBoot配置跨域请求

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package com.song.songvue.config;

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

/**
 *  Java编码定义
 */
@Configuration
public class MyWebConfig implements WebMvcConfigurer{

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry
                .addResourceHandler("/static/**")
                .addResourceLocations("classpath:/static/");
    }

    /**
     * 添加全局的配置 允许跨域请求
     */
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/testCors/**")
                .allowedHeaders("*")
                .allowedMethods("*")
                .maxAge(1800)
                .allowedOrigins("http://localhost:8090");
    }
}

指定到方法级别

package com.song.songvue.test;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;


/**
 * 测试CORS 跨域请求
 */
@RestController
@RequestMapping("/testCors")
public class TestCors {

    /**
     * @CrossOrigin
     *    value 表示支持的域
     *    maxAge 表示探测请求的有效期 1800秒
     *    allowedHeaders : *  表示所有的请求头都被允许
     */
    @PostMapping("/getData")
    @CrossOrigin(value = "http://localhost:8090", maxAge = 1800, allowedHeaders = "*")
    public String addBook(String name) {
        return "server: " + name;
    }

    @DeleteMapping("/{id}")
    @CrossOrigin(value = "http://localhost:8090", maxAge = 1800, allowedHeaders = "*")
    public String deleteBookById(@PathVariable String id) {
        return id;
    }

}