创建 CorsFilter 类
package com.ppc.util;
import org.springframework.stereotype.Component;
import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@Component
public class CorsFilter implements Filter{
@Override
public void init(FilterConfig filterConfig) {
}
@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,PUT");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "Authentication,Origin, X-Requested-With, Content-Type, Accept");
chain.doFilter(req, res);
}
@Override
public void destroy() {
// TODO Auto-generated method stub
}
}
web.xml 配置
<filter>
<filter-name>CorsFilter</filter-name>
<filter-class>com.ppc.util.CorsFilter</filter-class>
<init-param>
<param-name>IsCross</param-name>
<param-value>true</param-value>
</init-param>
CorsFilter /*
注意
web.xml 配置中 com.ppc.util.CorsFilter 是CorsFilter类的路径