spring项目中解决跨域问题

根据拦截器来实现设置响应头：

package com.kyee.group.background.filter;

import java.io.IOException;

import javax.servlet.*;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletResponse;

/**
* <pre>
* 任务： 
* 描述：
* 作者：chengzhanwei
* 时间：2017年5月5日上午10:31:29
* @param in
* @return
* returnType：ProtocolResultModel
* </pre>
*/

//AccessFilter extends HttpServlet implements Filter

public class AccessFilter extends HttpServlet implements Filter{

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
HttpServletResponse httpResponse = (HttpServletResponse) servletResponse;

        httpResponse.addHeader("Access-Control-Allow-Origin", "*");

        filterChain.doFilter(servletRequest, servletResponse);

}

@Override
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub

}

}

利用原生的拦截器去处理跨域问题；

然后在web.xml中配置

<filter>

    <filter-name>AccessFilter</filter-name>

    <filter-class>com.kyee.group.background.filter.AccessFilter</filter-class>

    </filter>

  <filter-mapping>

    <filter-name>AccessFilter</filter-name>

    <url-pattern>/*</url-pattern>

  </filter-mapping>