Springmvc解决跨域的样例代码

Spring MVC中可以通过下面的方式来解决跨域问题：1. 添加一个过滤器，设置允许跨域：@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
HttpServletResponse response = (HttpServletResponse) res;
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
chain.doFilter(req, res);
}2. 在Spring MVC中添加一个配置类，让Spring MVC支持跨域：@Configuration
public class CorsConfig {
@Bean
public WebMvcConfigurer corsConfigurer() {
return new WebMvcConfigurerAdapter() {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/api/**")
.allowedOrigins("*")
.allowedMethods("*")
.allowedHeaders("*");
}
};
}
}