소스 파일 최초 업로드

tomcat/webapps.dist/examples/WEB-INF/classes/trailers/ResponseTrailers.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package trailers;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Supplier;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * This example writes some trailer fields to the HTTP response.
+ */
+public class ResponseTrailers extends HttpServlet {
+
+    private static final long serialVersionUID = 1L;
+    private static final Supplier<Map<String,String>> TRAILER_FIELD_SUPPLIER =
+            new TrailerFieldSupplier();
+
+
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+            throws ServletException, IOException {
+
+        resp.setTrailerFields(TRAILER_FIELD_SUPPLIER);
+        resp.setContentType("text/plain");
+        resp.setCharacterEncoding("UTF-8");
+
+        PrintWriter pw  = resp.getWriter();
+
+        pw.print("This response should include trailer fields.");
+    }
+
+
+    private static class TrailerFieldSupplier implements Supplier<Map<String,String>> {
+
+        private static final Map<String,String> trailerFields = new HashMap<>();
+
+        static {
+            trailerFields.put("x-trailer-1", "Trailer value one");
+            trailerFields.put("x-trailer-2", "Trailer value two");
+        }
+
+        @Override
+        public Map<String, String> get() {
+            return trailerFields;
+        }
+    }
+}