htmlscriptconduit.java
来自「反向的AJAX。最大的特性是我们成为反向的Ajax。DWR1.x允许你用java」· Java 代码 · 共 110 行
JAVA
110 行
/* * Copyright 2005 Joe Walker * * 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 org.directwebremoting.dwrp;import java.io.IOException;import javax.servlet.http.HttpServletResponse;import org.directwebremoting.ScriptBuffer;import org.directwebremoting.extend.ConverterManager;import org.directwebremoting.extend.EnginePrivate;import org.directwebremoting.extend.MarshallException;import org.directwebremoting.extend.ScriptBufferUtil;import org.directwebremoting.util.MimeConstants;/** * A ScriptConduit for use with HTML/SCRIPT wrapped Javascript output. * <p>Scripts begin with an html and script tags. The scripts have been altered * to include an 'execute-in-parent-context' wrapper. * <p>If this conduit is used, the output should be directed to an iframe. No * polling should be required. * <p>This conduit works with IE 6/7 since the 4k buffer drawback (see * {@link PlainScriptConduit} and {@link Html4kScriptConduit} does not prevent * the execution of script elements. * @author Joe Walker [joe at getahead dot ltd dot uk] */public class HtmlScriptConduit extends BaseScriptConduit{ /** * Simple ctor * @param response Used to flush output * @param batchId The id of the batch that we are responding to * @param converterManager How we convert objects to script * @throws IOException If stream ops fail */ public HtmlScriptConduit(HttpServletResponse response, String batchId, ConverterManager converterManager) throws IOException { super(response, batchId, converterManager); } /* (non-Javadoc) * @see org.directwebremoting.dwrp.BaseCallMarshaller#getOutboundMimeType() */ protected String getOutboundMimeType() { return MimeConstants.MIME_HTML; } /* (non-Javadoc) * @see org.directwebremoting.dwrp.BaseScriptConduit#beginStream() */ public void beginStream() { synchronized (out) { out.println("<html><body>"); out.println("<script type=\"text/javascript\">"); out.println(EnginePrivate.remoteBeginIFrameResponse(batchId, true)); out.println("</script>"); } } /* (non-Javadoc) * @see org.directwebremoting.dwrp.BaseScriptConduit#endStream() */ public void endStream() { synchronized (out) { out.println("<script type=\"text/javascript\">"); out.println(EnginePrivate.remoteEndIFrameResponse(batchId, true)); out.println("</script>"); out.println("</body></html>"); } } /* (non-Javadoc) * @see org.directwebremoting.ScriptConduit#addScript(org.directwebremoting.ScriptBuffer) */ public boolean addScript(ScriptBuffer scriptBuffer) throws IOException, MarshallException { String script = ScriptBufferUtil.createOutput(scriptBuffer, converterManager); synchronized (out) { // TODO: We don't think the comments are needed because the exec is automatic out.println("<script type=\"text/javascript\">"); // out.println(ProtocolConstants.SCRIPT_START_MARKER); out.println(EnginePrivate.remoteEval(script)); // out.println(ProtocolConstants.SCRIPT_END_MARKER); out.println("</script>"); return flush(); } }}⌨️ 快捷键说明
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