public class CookieUtil implements Filter {
private Logger logger = LoggerFactory.getLogger(CookieUtil.class);
@Override
public void init(FilterConfig filterConfig) throws ServletException {
logger.info("======初始化,允许跨域请求=========");
}
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) res;
response.setContentType("textml;charset=UTF-8");
response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "X-Requested-With,Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With,userId,token");
response.setHeader("XDomainRequestAllowed","3600");
chain.doFilter(req, res);
@Override
public void destroy() {
}
}
web.xml中添加
<filter>
<filter-name>CookieUtil</filter-name>
<filter-class>com.oa.ml.util.CookieUtil</filter-class>
</filter>
<filter-mapping>
<filter-name>CookieUtil</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
js中添加：
xhrFields: {
withCredentials: true
},
dataType:'JSON'
为什么session还是丢失？
