오즈 서버 CORS 해결하기

소개

외부에서 oz-report 오즈서버에 있는 파일등 접근할 경우 cors 이슈 해결하기

Web.xml에 코드 추가

Web.xml(상단에 추가 코드1)

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee https://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

Web.xml(추가 코드2)

  <filter>
    <filter-name>CORSFilter</filter-name>
    <filter-class>oz80.CORSFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>CORSFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

Web.xml(전체 코드)

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee https://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

  <servlet>
    <servlet-name>httpserver</servlet-name>
    <servlet-class>oz.server.OZServlet</servlet-class>
  </servlet>

  <servlet>
    <servlet-name>ozhello</servlet-name>
    <servlet-class>HelloWorld</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>httpserver</servlet-name>
    <url-pattern>/server</url-pattern>
  </servlet-mapping>

  <servlet-mapping>
    <servlet-name>httpserver</servlet-name>
    <url-pattern>/server/*</url-pattern>
  </servlet-mapping>

  <servlet-mapping>
    <servlet-name>ozhello</servlet-name>
    <url-pattern>/hello</url-pattern>
  </servlet-mapping>

  <!--  CORSFilter 설정 -->
  <filter>
    <filter-name>CORSFilter</filter-name>
    <filter-class>oz80.CORSFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>CORSFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

Resources폴더에 CORSFilter 파일 추가

Github Traffic

CORSFilter.java

    package oz80;

    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.HttpServletResponse;

    public class CORSFilter implements Filter {
            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, DELETE, PUT");
                    response.setHeader("Access-Control-Max-Age", "3600");
                    response.setHeader("Access-Control-Allow-Headers", "x-requested-with, origin, content-type, cache-control, accept");
                    chain.doFilter(req, res);
                    }
            public void init(FilterConfig filterConfig) {}
            public void destroy() {}
    }