在csdn里面看了一篇关于将动态jsp内容保存为静态页面的文章,忘记网址了,大家可以搜索一下 :)。他没有提供源代码,然后自己测试着写了一个.主要想法是捕获 out 的输出后,可以保存到一些静态文件中,可以写一个 jsp的缓冲程序.
代码有待完善, 希望有这方面经验的朋友来共同完善.
在resin环境中测试成功,没有在tomcat其他服务器下测试,还存在一个问题,就是不能够同时输出到ie浏览器中.
以下为程序代码, 例如保存到 test.jsp 文件中,然后在ie中执行
http://....../test.jsp
将看不到任何输出,但是可以在后台resin的dos窗口中看到输出的内容
| <%@ page language="java" contenttype="text/html;charset=gb2312"%>
<%@ page import="java.io.*"%>
<%@ page import="java.util.*"%>
<%! //继承 jspwriter 类
class myout extends jspwriter
{
private httpservletresponse response; //将输出语句都存入os中
public chararraywriter os; public myout()
{
super(0, false);
os = new chararraywriter();
} public string getstring() {
return os.tostring();
} public final void write(byte buf[], int off, int len)
throws ioexception
{
os.write( new string(buf, off, len) );
} public final void write(char buf[], int off, int len)
throws ioexception
{
os.write( new string(buf, off, len) );
} |
| public final void write(int ch)
throws ioexception
{
os.write( string.valueof(ch) );
} public final void write(char buf[])
throws ioexception
{
os.write( string.valueof(buf) );
} public final void write(string s)
throws ioexception
{
os.write( s );
} public final void write(string s, int off, int len)
throws ioexception
{
os.write( s, off, len );
} public final void newline()
throws ioexception
{
os.write( "/n/r" );
} public final void print(boolean b)
throws ioexception
{
os.write( string.valueof(b) );
} public final void print(char ch)
throws ioexception
{
os.write( string.valueof(ch) );
} public final void print(int i)
throws ioexception
{
os.write( string.valueof(i) );
} public final void print(long l)
throws ioexception
{
os.write( string.valueof(l) );
} |
| public final void print(float f)
throws ioexception
{
os.write( string.valueof(f) );
} public final void print(double d)
throws ioexception
{
os.write( string.valueof(d) );
} public final void print(char s[])
throws ioexception
{
os.write( string.valueof(s) );
} public final void print(string s)
throws ioexception
{
os.write( s );
} public final void print(object o)
throws ioexception
{
os.write( string.valueof(o) );
} public final void println()
throws ioexception
{
os.write( "/n/r" );
} public final void println(boolean b)
throws ioexception
{
os.write( string.valueof(b) );
} public final void println(char ch)
throws ioexception
{
os.write( string.valueof(ch) );
} public final void println(int i)
throws ioexception
{ |
| os.write( string.valueof(i) );
} public final void println(long l)
throws ioexception
{
os.write( string.valueof(l) );
} public final void println(float f)
throws ioexception
{
os.write( string.valueof(f) );
} public final void println(double d)
throws ioexception
{
os.write( string.valueof(d) );
} public final void println(char s[])
throws ioexception
{
os.write(s, 0, s.length);
} public final void println(string s)
throws ioexception
{
os.write(s);
} public final void println(object o)
throws ioexception
{
os.write( string.valueof(o) );
} public final void clear()
throws ioexception
{
os.reset();
} public final void flush()
throws ioexception
{
os.flush();
} |
| public void clearbuffer() {
os.reset();
} public servletoutputstream getoutputstream()
throws java.io.ioexception
{
return response.getoutputstream();
} //执行该方法可以将内容输出,或者保存为文件
public final void close()
throws ioexception
{
system.out.println( "以下为静态输出" );
system.out.println( os.tostring() );
} public final int getbuffersize()
{
if(buffersize == 0)
return buffersize;
else
return response.getbuffersize();
} public final int getremaining()
{
return os.size();
} public final boolean isautoflush()
{
return autoflush;
}
} %> <% out = new myout(); out.println( "开始输出, 在浏览器将会什么都不到<br>" );
%> <html>
<head>
<body> <%
out.println( "文件内容" );
%> </body>
</head>
</html>
<%
out.close();
%> |
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