添加允许跨域option请求的过滤器。

src/main/java/com/founder/framework/filter/RequestFilter.java

+package com.founder.framework.filter;
+
+
+import org.apache.http.HttpStatus;
+
+import javax.servlet.*;
+import javax.servlet.annotation.WebFilter;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+/**
+ * 改写所有请求头
+ * @author silence
+ * @date 2018/12/11 15:19
+ */
+
+@WebFilter(filterName = "requestFilter",urlPatterns = {"/*"})
+public class RequestFilter implements Filter {
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+
+    }
+
+    @Override
+    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
+
+        HttpServletResponse response = (HttpServletResponse) servletResponse;
+        HttpServletRequest request = (HttpServletRequest)servletRequest;
+
+        response.setHeader("Access-Control-Allow-Origin", "*");
+        response.setHeader("Access-Control-Allow-Methods", "*");
+        response.setHeader("Access-Control-Max-Age", "3600");
+        response.setHeader("Access-Control-Allow-Headers", "Content-Type,XFILENAME,XFILECATEGORY,XFILESIZE,x-requested-with,Authorization");
+        response.setHeader("Access-Control-Allow-Credentials", "true");
+        String method = request.getMethod();
+        if(method.equalsIgnoreCase("OPTIONS")){
+            response.setStatus(HttpStatus.SC_OK);
+
+            // response.setContentLength(0);
+
+            response.getWriter().write("OPTIONS returns OK");
+
+            return;
+
+        }
+        filterChain.doFilter(servletRequest, servletResponse);
+    }
+
+    @Override
+    public void destroy() {
+
+    }
+
+}