/**
* jetbrick-template
* http://subchen.github.io/jetbrick-template/
*
* Copyright 2010-2014 Guoqiang Chen. All rights reserved.
* Email: subchen@gmail.com
*
* 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.
*/
package jetbrick.template.web.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.*;
import jetbrick.template.*;
import jetbrick.template.web.JetWebContext;
import jetbrick.template.web.JetWebEngineLoader;
/**
* 直接作为 Servlet 使用。需要在 web.xml 中作如下配置。
* <pre><xmp>
* <servlet>
* <servlet-name>jetbrick-template</servlet-name>
* <servlet-class>jetbrick.template.web.servlet.JetTemplateServlet</servlet-class>
* <load-on-startup>1</load-on-startup>
* </servlet>
* <servlet-mapping>
* <servlet-name>jetbrick-template</servlet-name>
* <url-pattern>*.jetx</url-pattern>
* </servlet-mapping>
* </xmp></pre>
*/
public class JetTemplateServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
@Override
public void init() throws ServletException {
JetWebEngineLoader.setServletContext(getServletContext());
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
JetEngine engine = JetWebEngineLoader.getJetEngine();
String charsetEncoding = engine.getConfig().getOutputEncoding();
if (response.getContentType() == null) {
response.setContentType("text/html; charset=" + charsetEncoding);
}
response.setCharacterEncoding(charsetEncoding);
String uri = request.getServletPath();
String pathInfo = request.getPathInfo();
if (pathInfo != null && pathInfo.length() > 0) {
uri = uri + pathInfo;
}
try {
JetTemplate template = engine.getTemplate(uri);
JetContext context = new JetWebContext(request, response);
template.render(context, response.getOutputStream());
} catch (ResourceNotFoundException e) {
response.sendError(HttpServletResponse.SC_NOT_FOUND, "Template not found: " + uri);
}
}
}