Spring Boot实现跨域访问实现代码

当前使用spring版本是4.3.9

import org.springframework.stereotype.Component;import javax.servlet.*;import javax.servlet.Http.httpservletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;@Componentpublic class CorsFilter implements Filter {  @Override  public void init(FilterConfig filterConfig) throws ServletException {  }  @Override  public void doFilter(ServletRequest servletRequest,             ServletResponse servletResponse,             FilterChain filterChain) throws IOException, ServletException {    HttpServletRequest request = (HttpServletRequest) servletRequest;    HttpServletResponse response = (HttpServletResponse) servletResponse;    response.setHeader("Access-Control-Allow-Origin", request.getHeader("origin"));//    response.setHeader("Access-Control-Allow-Origin", "*");//允许跨域访问的域    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");//允许使用的请求方法，以逗号隔开    response.setHeader("Access-Control-Max-Age", "3600");// 缓存此次请求的秒数    //允许使用的请求方法，以逗号隔开    response.setHeader("Access-Control-Allow-Headers", "x-requested-with,Cache-Control,Pragma,Content-Type,Token");    response.setHeader("Access-Control-Allow-Credentials","true");//是否允许请求带有验证信息    filterChain.doFilter(servletRequest, servletResponse);  }  @Override  public void destroy() {  }}