Spring MVC 4.0 + Velocity Tools 2.0遇到的问题

2019-11-08 03:12:34

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1、SPRing MVC 4.0及更高版本不建议使用Velocity模板引擎，为了继承Velocity并使用Velocity Tools，需要重写viewClass，如下：

import org.apache.velocity.context.Context;import org.apache.velocity.tools.Scope;import org.apache.velocity.tools.ToolManager;import org.apache.velocity.tools.ToolboxFactory;import org.apache.velocity.tools.view.ViewToolContext;import org.springframework.web.servlet.view.velocity.VelocityLayoutView;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.util.Map;public class VelocityLayoutToolbox2View extends VelocityLayoutView { private static ToolboxFactory toolboxFactory = null; @Override protected Context createVelocityContext(Map<String, Object> model, HttpServletRequest request, HttpServletResponse response) throws Exception { // Create a ChainedContext instance. ViewToolContext vtc; vtc = new ViewToolContext(getVelocityEngine(), request, response, getServletContext()); vtc.putAll(model); if (toolboxFactory == null) { ToolManager toolManager = new ToolManager(); toolManager.setVelocityEngine(getVelocityEngine()); toolManager.configure(getServletContext().getRealPath(getToolboxConfigLocation())); toolboxFactory = toolManager.getToolboxFactory(); } if (this.getToolboxConfigLocation() != null) { if (toolboxFactory.hasTools(Scope.REQUEST)) { vtc.addToolbox(toolboxFactory.createToolbox(Scope.REQUEST)); } if (toolboxFactory.hasTools(Scope.application)) { vtc.addToolbox(toolboxFactory.createToolbox(Scope.APPLICATION)); } if (toolboxFactory.hasTools(Scope.session)) { vtc.addToolbox(toolboxFactory.createToolbox(Scope.SESSION)); } } return vtc; }}

重写后，在applicationContext.xml文件中配置viewClass，如下：

2、Velocity Tools 2.0的配置文件格式和低版本的不同，这是个大坑！！！具体如下： ===低版本格式

<toolbox> <tool> <key>SSOPermission</key> <scope>application</scope> <class>com.baomidou.springwind.common.SSOPermissionTool</class> </tool> <tool> <key>date</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.DateTool</class> </tool> <tool> <key>math</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.MathTool</class> </tool> <tool> <key>number</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.NumberTool</class> </tool> <tool> <key>render</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.RenderTool</class> </tool> <tool> <key>esc</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.EscapeTool</class> </tool> <tool> <key>alternator</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.AlternatorTool</class> </tool> <tool> <key>parser</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.ValueParser</class> </tool> <tool> <key>sorter</key> <scope>application</scope> <class>org.apache.velocity.tools.generic.SortTool</class> </tool></toolbox>

===2.0格式

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