增加CORS的过滤器，但没有配置上

src/main/java/com/uas/platform/b2c/core/filter/SimpleCORSFilter.java

@@ -0,0 +1,43 @@
+package com.uas.platform.b2c.core.filter;
+
+
+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;
+
+/**
+ * CORS 跨域请求过滤器，实现允许跨域
+ * @author suntg
+ * @since 2018年3月15日17:51:32
+ */
+public class SimpleCORSFilter implements Filter {
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+
+    }
+
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response,
+                         FilterChain chain) throws IOException, ServletException {
+        HttpServletResponse res = (HttpServletResponse) response;
+        res.setHeader("Access-Control-Allow-Origin", "*");
+        res.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, PUT");
+        res.setHeader("Access-Control-Allow-Headers", "Content-Type");
+        res.setHeader("Access-Control-Allow-Credentials", "true");
+        res.setHeader("Access-Control-Allow-Headers", "x-requested-with");
+        chain.doFilter(request, res);
+    }
+
+    @Override
+    public void destroy() {
+
+    }
+
+}