Spring解决跨域问题方案

1 全局解决方案

package org.spring.springboot.controller;

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;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class CorsConfig{
private CorsConfiguration buildConfig() {
CorsConfiguration corsConfiguration = new CorsConfiguration();
corsConfiguration.addAllowedOrigin("*"); // 1 设置访问源地址
corsConfiguration.addAllowedHeader("*"); // 2 设置访问源请求头
corsConfiguration.addAllowedMethod("*"); // 3 设置访问源请求方法
return corsConfiguration;
}

@Bean
public CorsFilter corsFilter() {
UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
source.registerCorsConfiguration("/**", buildConfig()); // 4 对接口配置跨域设置
return new CorsFilter(source);
}
}

 

2 局部解决方案

@RestController
@RequestMapping("/testBoot")
public class UserController {

@Autowired
private UserService userService;

// 查询
@CrossOrigin(origins = "*",maxAge = 3600)
@GetMapping("/getUser")
@ResponseBody
public String GetUsers(@RequestParam(value="id") int id ) {
return userService.Sel(id).toString();
}