CorsFilter 필터

CorsFilter 필 터 는 크로스 필드 를 어떻게 해결 합 니까?
강요 하지 않 고 코드 를 붙 이 고 전단 의 모든 요청 헤드 를 headers 에 넣 으 면 됩 니 다.

@Component
public class CorsFilter {
    //        ,             
    private static final String headers = "User-Agent,Cache-Control,Content-type,Date,Server,withCredentials," +
            "appversion";
    @Override
    public void init(FilterConfig filterConfig)
            throws ServletException {
    }
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        HttpServletResponse httpServletResponse = (HttpServletResponse) response;
        httpServletResponse.setHeader("Access-Control-Allow-Origin", "*");
        httpServletResponse.setHeader("Access-Control-Allow-Headers", headers);
        httpServletResponse.setHeader("Access-Control-Allow-Credentials", "true");
        httpServletResponse.setHeader("Access-Control-Allow-Methods",
                "GET, POST, PUT, DELETE, OPTIONS, HEAD");
        httpServletResponse.setHeader("Access-Control-Max-Age", "3600");
        httpServletResponse.setHeader("Access-Control-Expose-Headers", "usertoken");
        httpServletResponse.setHeader("Access-Control-Request-Headers", "usertoken");
        httpServletResponse.setHeader("Expires", "-1");
        httpServletResponse.setHeader("Cache-Control", "no-cache");
        httpServletResponse.setHeader("pragma", "no-cache");
        ServletRequest requestWrapper = null;
        if (request instanceof HttpServletRequest) {
            requestWrapper = new RequestWrapper((HttpServletRequest) request);
        }
        if (null == requestWrapper) {
            chain.doFilter(request, response);
        } else {
            chain.doFilter(requestWrapper, response);
        }
    }
    @Override
    public void destroy() {
    }
}

크로스 필드 필터

package com.grain.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class CORSFilter implements Filter {
 @Override
 public void init(FilterConfig arg0) throws ServletException {
  // TODO Auto-generated method stub
  
 }
 @Override
 public void destroy() {
  // TODO Auto-generated method stub
  
 }

 @Override
 public void doFilter(ServletRequest req, ServletResponse res, FilterChain filterChain)
   throws IOException, ServletException {
  HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;
  response.addHeader("Access-Control-Allow-Origin", "*");
        response.addHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");
        response.addHeader("Access-Control-Allow-Headers", "Content-Type");
        response.addHeader("Access-Control-Max-Age", "1800");//30 min
        filterChain.doFilter(request, response); 
 }
}

웹.xml 설정

<filter>
   <filter-name>CORSFilter</filter-name>
   <filter-class>com.grain.filter.CORSFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>CORSFilter</filter-name>
   <url-pattern>/*</url-pattern>
  </filter-mapping>

이상 은 개인 적 인 경험 이 므 로 여러분 에 게 참고 가 되 기 를 바 랍 니 다.여러분 들 도 저 희 를 많이 응원 해 주시 기 바 랍 니 다.