谢谢大家，仔细检查了程序， 把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp "> 修改为 <form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp "> 就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？
谢谢大家，仔细检查了程序， 把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp "> 修改为 <form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp "> 就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？
谢谢大家，仔细检查了程序， 把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp "> 修改为 <form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp "> 就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？
谢谢大家，仔细检查了程序， 把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp "> 修改为 <form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp "> 就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？
. 代表当前目录没错，但是 / 却不是代表当前目录，而是代表 web application 的 ‘根目录’
尽量不要随意更改文件名，或者删除文件。也容易出这种错误。你可以make整个工程试一下。project->make yourproject
谢谢大家，仔细检查了程序，
把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp ">
修改为
<form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp ">
就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？
谢谢大家，仔细检查了程序，
把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp ">
修改为
<form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp ">
就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？
谢谢大家，仔细检查了程序，
把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp ">
修改为
<form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp ">
就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？
http://community.csdn.net/Expert/topic/3565/3565952.xml?temp=.654339
不知你解决没有
谢谢大家，仔细检查了程序，
把<form method="post" action="/controller?Service=DataShowService&target=/dataShow.jsp ">
修改为
<form method="post" action="./controller?Service=DataShowService&target=/dataShow.jsp ">
就可以了。"."不是代表当前目录吗，而"/"默认也是当前目录呀，为什么会出现The server encountered an internal error (No Context configured to process this request) that prevented it from fulfilling this request. 这种错误呢？