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Merge pull request #158 from GoogleCloudPlatform/urlfetch
Add URLFetch sample
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# Eclipse files | ||
.project | ||
.classpath | ||
.settings | ||
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# Intellij | ||
.idea/ | ||
*.iml | ||
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# Target folders | ||
target/ |
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# Google App Engine Standard Environment URL Fetch Sample | ||
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This sample demonstrates how to deploy an application on Google App Engine. | ||
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See the [Google App Engine standard environment documentation][ae-docs] for more | ||
detailed instructions. | ||
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[ae-docs]: https://cloud.google.com/appengine/docs/java/ | ||
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## Setup | ||
1. Update the `<application>` tag in `src/main/webapp/WEB-INF/appengine-web.xml` | ||
with your project name. | ||
1. Update the `<version>` tag in `src/main/webapp/WEB-INF/appengine-web.xml` | ||
with your version name. | ||
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## Running locally | ||
$ mvn appengine:devserver | ||
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## Deploying | ||
$ mvn appengine:update |
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<!-- | ||
Copyright 2015 Google Inc. All Rights Reserved. | ||
Licensed 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. | ||
--> | ||
<project> | ||
<modelVersion>4.0.0</modelVersion> | ||
<packaging>war</packaging> | ||
<version>1.0-SNAPSHOT</version> | ||
<groupId>com.example.appengine</groupId> | ||
<artifactId>appengine-URLFetch</artifactId> | ||
<parent> | ||
<groupId>com.google.cloud</groupId> | ||
<artifactId>doc-samples</artifactId> | ||
<version>1.0.0</version> | ||
<relativePath>../..</relativePath> | ||
</parent> | ||
<dependencies> | ||
<dependency> | ||
<groupId>javax.servlet</groupId> | ||
<artifactId>servlet-api</artifactId> | ||
<type>jar</type> | ||
<scope>provided</scope> | ||
</dependency> | ||
<dependency> | ||
<groupId>org.json</groupId> | ||
<artifactId>json</artifactId> | ||
<version>20160212</version> | ||
</dependency> | ||
</dependencies> | ||
<build> | ||
<!-- for hot reload of the web application --> | ||
<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory> | ||
<plugins> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<version>3.3</version> | ||
<artifactId>maven-compiler-plugin</artifactId> | ||
<configuration> | ||
<source>1.7</source> | ||
<target>1.7</target> | ||
</configuration> | ||
</plugin> | ||
<!-- Parent POM defines ${appengine.sdk.version} (updates frequently). --> | ||
<plugin> | ||
<groupId>com.google.appengine</groupId> | ||
<artifactId>appengine-maven-plugin</artifactId> | ||
<version>${appengine.sdk.version}</version> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
</project> |
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appengine/urlfetch/src/main/java/com/example/appengine/UrlFetchServlet.java
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/** | ||
* Copyright 2015 Google Inc. All Rights Reserved. | ||
* | ||
* Licensed 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. | ||
*/ | ||
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package com.example.appengine; | ||
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import org.json.JSONObject; | ||
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import java.io.BufferedReader; | ||
import java.io.IOException; | ||
import java.io.InputStreamReader; | ||
import java.io.PrintWriter; | ||
import java.net.URL; | ||
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import javax.servlet.http.HttpServlet; | ||
import javax.servlet.http.HttpServletRequest; | ||
import javax.servlet.http.HttpServletResponse; | ||
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@SuppressWarnings("serial") | ||
public class UrlFetchServlet extends HttpServlet { | ||
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@Override | ||
public void doGet(HttpServletRequest req, HttpServletResponse resp) | ||
throws IOException { | ||
PrintWriter out = resp.getWriter(); | ||
out.println("<html><body>"); | ||
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// [START example] | ||
URL url = new URL("http://api.icndb.com/jokes/random"); | ||
BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream())); | ||
String json = ""; | ||
String line; | ||
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while ((line = reader.readLine()) != null) { | ||
json += line; | ||
} | ||
reader.close(); | ||
// [END example] | ||
JSONObject jo = new JSONObject(json); | ||
out.println("<h2>" | ||
+ jo.getJSONObject("value").getString("joke") | ||
+ "</h2>"); | ||
out.println("</body></html>"); | ||
} | ||
} |
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<?xml version="1.0" encoding="utf-8"?> | ||
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0"> | ||
<application>YOUR-PROJECT-ID</application> | ||
<version>YOUR-VERSION-ID</version> | ||
<threadsafe>true</threadsafe> | ||
</appengine-web-app> |
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<?xml version="1.0" encoding="utf-8"?> | ||
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" | ||
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" | ||
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" | ||
version="2.5"> | ||
<servlet> | ||
<servlet-name>hello</servlet-name> | ||
<servlet-class>com.example.appengine.UrlFetchServlet</servlet-class> | ||
</servlet> | ||
<servlet-mapping> | ||
<servlet-name>hello</servlet-name> | ||
<url-pattern>/</url-pattern> | ||
</servlet-mapping> | ||
</web-app> |
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