设置请求头解决浏览器同源问题

Posted 2020-09-13 zzz初见

思想: 添加过滤器 设置请求头 代码如下 

 

package com.deppon.vas.common.framework.cors;

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 {

    @Override
    public void destroy() {
    }

    @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", "Access-Control,Origin, X-Requested-With, Content-Type, Accept");
        response.setHeader("Access-Control-Allow-Credentials", "false");
        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {
    }

}

web.xml设置拦截器

<!-- CORS拦截器 -->
    <filter>
        <filter-name>cors</filter-name>
        <filter-class>com.deppon.vas.common.framework.cors.CorsFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>cors</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

完毕