小编mee*_*eee的帖子

input[type=hidden]和之间有什么区别visibility : hidden;？

我正在尝试将String时间戳转换为Integer,我将postgres用作DB.

@Column(name = "connecte_timestamp")
private Integer timestamp;

SimpleDateFormat formater = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss");
Date aujourdhui = new Date();
this.timestamp = Integer.parseInt(formater.format(aujourdhui)
                .replace("-", "").replace(" ", "").replace(":", ""));

时间戳在数据库中bigint具有类型.当我运行我的应用程序时,我得到以下堆栈跟踪:

java.lang.NumberFormatException:对于输入字符串:"01092013062024",位于java.lang.Integer.parseInt(未知来源)java.lang.Integer.parseInt(未知来源)的java.lang.NumberFormatException.forInputString(未知来源) com.forum.beans.Connecte.(Connecte.java:26)at com.forum.servlets.ListageForums.doGet(ListageForums.java:32)at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)在org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.的java:210)在org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)在org.apache.catalina.core .applicationFilterChain.doFilter(ApplicationFilterChain.java:210)在org.apache.catalina.core.StandardWrappe rValve.invoke(StandardWrapperValve.java:222)在org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)在org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)在组织.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)在org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)在org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve的.java:953)在org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)在org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)在org.apache.coyote. http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)在org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process(AbstractProtocol.java:589)在org.apache.tomcat.util.net.JIoEndpoint $ SocketProcessor.run(JIoEndpoint. java:312)java.util.concurrent.Threa的java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)java.lang.Thread.run上的dPoolExecutor $ Worker.run(未知来源)(未知来源)

有什么帮助吗？

我在textarea中有这些标签

<gras>.....</gras>

我正在尝试使用replaceAll() String方法替换它们

text.replaceAll("<gras>", "<b>");

text.replaceAll("</gras>", "</b>");

但是,这个正则表达式代码不起作用.有什么帮助吗？