JSP页面时间格式化

一时失言乱红尘 2023-06-18 10:56 2阅读 0赞

## 背景 ##

今天在做一个项目时，项目需求是前端需要显示操作时间，然而在数据库中我设置的时间类型是date类型。无脑式直接获取时间，结果在table表中显示时间时报错，于是我又加上<fmt:formatDate pattern=“yyyy-MM-dd” value="$\{xxx.xx\}" type=“Date” />这条格式化语句，结果还是报错，报错信息：According to TLD or attribute directive in tag file, attribute \[value\] does not accept any expressions

org.apache.jasper.JasperException: /WEB-INF/jsp/engineList.jsp （行: [64], 列: [36]) According to TLD or attribute directive in tag file, attribute [value] does not accept any expressions
    		at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)
    		at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:291)
    		at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:114)
    		at org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1248)
    		at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:886)
    		at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1544)
    		at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2389)
    		at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2441)
    		at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:905)
    		at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1544)
    		at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2389)
    		at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2441)
    		at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:905)
    		at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1544)
    		at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2389)
    		at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2441)
    		at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:905)
    		at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1544)
    		at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2389)
    		at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2441)
    		at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2447)
    		at org.apache.jasper.compiler.Node$Root.accept(Node.java:470)
    		at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2389)
    		at org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1855)
    		at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:221)
    		at org.apache.jasper.compiler.Compiler.compile(Compiler.java:375)
    		at org.apache.jasper.compiler.Compiler.compile(Compiler.java:351)
    		at org.apache.jasper.compiler.Compiler.compile(Compiler.java:335)
    		at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:597)
    		at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
    		at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
    		at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
    		at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    		at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    		at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728)
    		at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:470)
    		at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395)
    		at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:316)
    		at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)
    		at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
    		at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228)
    		at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011)
    		at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955)
    		at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    		at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    		at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
    		at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
    		at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    		at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    		at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    		at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    		at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    		at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    		at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    		at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
    		at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    		at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:528)
    		at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    		at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    		at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
    		at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    		at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    		at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:609)
    		at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    		at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:810)
    		at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1506)
    		at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    		at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    		at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    		at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    		at java.lang.Thread.run(Thread.java:745)

## 解决 ##

在编写格式化语句时，直接使用了Alt+Enter自动导入，但是导入的是

<%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt" %>而实际上正确的是这个

`而实际上正确的是下面这个:`

<%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt_rt" %>

## 后记 ##

关于JSP页面时间格式化：

1、当后台传过来的时间格式是data类型的时候，这个时候可以直接处理

<fmt:formatDate value="${blog.releaseDate }" type="date" pattern="yyyy-MM-dd HH:mm"/>

2、当后台传过来的时间格式是String 的时候，这个时候就要使用间接的处理：

<fmt:parseDate var="dateObj" value="${lists.request_time}" type="DATE" pattern="yyyy-MM-dd HH:ss:mm"/>
    <fmt:formatDate var="reTime" value='${dateObj}' pattern='yyyy-MM-dd HH:ss:mm' /> ${reTime}