哪位大侠可以给我解释下这个异常是什么原因造成的吗？
org.apache.jasper.JasperException: java.lang.IllegalStateException
&&&&&&at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
&&&&&&at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410)
&&&&&&at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
&&&&&&at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
&&&&&&at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
&&&&&&at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
&&&&&&at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
&&&&&&at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:197)
&&&&&&at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:171)
&&&&&&at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
&&&&&&at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
&&&&&&at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:73)
&&&&&&at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
&&&&&&at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
&&&&&&at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
&&&&&&at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
&&&&&&at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
&&&&&&at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
&&&&&&at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568)
&&&&&&at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
&&&&&&at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
&&&&&&at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:880)
&&&&&&at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:719)
&&&&&&at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2081)
&&&&&&at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
&&&&&&at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
&&&&&&at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException
&&&&&&at org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:435)
&&&&&&at javax.servlet.http.HttpServletResponseWrapper.sendRedirect(HttpServletResponseWrapper.java:126)
&&&&&&at org.apache.taglibs.mon.core.RedirectSupport.doEndTag(RedirectSupport.java:119)
&&&&&&at org.apache.jsp.web.news_jsp._jspx_meth_c_005fredirect_005f0(news_jsp.java:1123)
&&&&&&at org.apache.jsp.web.news_jsp._jspx_meth_c_005fif_005f7(news_jsp.java:1095)
&&&&&&at org.apache.jsp.web.news_jsp._jspService(news_jsp.java:282)
&&&&&&at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
&&&&&&at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
&&&&&&at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
&&&&&&... 25 more
已经往 response 写了一些数据后，再调用 sendRedirect 就会发生这种问题。
引用来自“鉴客”的***已经往 response 写了一些数据后，再调用 sendRedirect 就会发生这种问题。谢了。有没有哪位大侠可以帮我翻译这几句俗语？
在沪江关注娱乐生活的沪友尚采倪遇到了一个关于生活英语的疑惑，并悬赏5沪元，已有3人提出了自己的看法。
知识点疑惑描述：
萝卜白菜各有所爱
自助者天助也
挂羊头卖狗肉
情人眼里出西施
最佳知识点讲解
知识点相关讲解
东施效颦: blind imitation with ludicrous effection (意译)
东施效颦Aping a Beauty
越国苎罗(今浙江诸暨南)有位姓施的美女，因为家住若耶溪西岸，所以村里人叫她西施。若耶溪东岸也有位姓施的姑娘。她长得很丑，村里人管她叫东施。
　　有一天，西施心口疼，走路的时候双手捂住胸部，并且皱着眉头。村里人见她这个模样，都同情地说：“瞧这姑娘的模样，准是疼得难受，真是可怜！”
　　西施的病态正好被东施瞧见了。她一边看，一边默默记住她难受的姿态和动作。回到溪东后，也模仿西施的模样，双手捂住胸部，同时皱着眉头。
　　东施的这副模样，使村里人大吃一惊，富人紧闭大门不出来，穷人也带着妻儿躲开。 东施只知道人家皱着眉头很美，却不知道为什么皱着眉头会美。
　　Xi Shi, a famous beauty, had a pain in her bosom, so she had a frown on her face when she went out. An ugly girl who lived nearby saw her and thought she looked very beautiful. Therefore when she went home, she also put her hands on her bosom and had a frown on her face.
　　When a rich man in the neighbourhood saw her, he shut his doors tightly and did not go out. When a poor man saw her, he took his wife and children and gave her a wide berth.
　　She only knew Xi Shi's frown looked beautiful but she did not know the reason for its beauty.
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萝卜白菜各有所爱: one man's meat is another's poison.
[字面意思] 一个人喜欢吃的肉对另一个人来说是毒药。
[解释] 你喜欢的可能其他人不喜欢。比如：不要给所有的朋友送一样的礼物。Don't give all your friends Chinese made drinking glasses, one man's meat is another's poison.
或者用这个
There is no accounting for taste(s).
[字面意思] 谁也无法解释各人有各人的品位或口味的原因。
[解释] 每个人都有他自己喜欢的事物；人各有所好；百人百味。有人喜欢集邮；有人喜欢收集香烟盒；还有人喜欢收集钥匙链：There is no accounting for tastes
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自助者天助也 God help those who help themselves.
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挂羊头卖狗肉: After praising the wine they sell us vinegar.
Explanation: to offer to give or sell something that is inferior to what you claim it to be.
Example: that fellow completely misled us about what he was capable of doing. After praising
the wine, he sold us vinegar.
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情人眼里出西施: Beauty is in the eye of the beholder.
或者 If jack is in love, he is no judge of jill’s beauty.
---- vincent985
东施效颦:Dongshi,an ugly
woman,knitting her brows in imitation of the beauty Xishi,only to make herself much uglier--------crude imitation with ludicrous effecct.
萝卜白菜各有所爱:Some prefer turnips and others peans.
自助者天助也:God help those who help themselves.
挂羊头卖狗肉:to palm off sth. inferior to what it purports to be
情人眼里出西施: Beauty is in the beholders' eyes.
---- wangyi1987
萝卜青菜各有所爱： to each his own(/page/20370/)
还可以说：Every man has his hobbyhorse.
东施效颦：Aping a Beauty
自助者天助也：God helps those who help themselves!（楼上的help忘加s了）
挂羊头卖狗肉：After praising the wine they sell us vinegar.
情人眼里出西施：If jack is in love, he is no judge of jill’s beauty.
---- 水越云霄
相关其他知识点