前后端分离引起的跨域问题解决

最新推荐文章于 2024-06-26 10:33:19 发布

原创最新推荐文章于 2024-06-26 10:33:19 发布 · 689 阅读

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#跨域

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本文介绍了一个Spring MVC拦截器实现的跨域支持方案。通过设置HTTP响应头来允许特定来源的跨域请求，支持多种请求方法，并确保凭证可以随请求发送。

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package com.htxx.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CrossDomainInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest req, HttpServletResponse resp, Object o) throws Exception {
        //cors
        resp.setContentType("textml;charset=UTF-8");
        resp.setHeader("Access-Control-Allow-Origin", req.getHeader("Origin"));
        resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        resp.setHeader("Access-Control-Max-Age", "0");
        resp.setHeader("Access-Control-Allow-Headers", "Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With,userId,token");
        resp.setHeader("Access-Control-Allow-Credentials", "true");
        resp.setHeader("XDomainRequestAllowed","1");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}