返回上一页

Java代码

<%String ref = request.getHeader("REFERER");%>  

Html代码

<input type="button" name="returngo" value="/blog/返回上一页"  onclick="javascript:window.location='<%=ref%>'" >  

1.struts Ation中的用法：
Jsp获取上一页的url
Java代码

String url=request.getHeader("Referer");  

mapping.findForward(url);  

2.
利用javascript
Javascript代码

public  String jump( String jump)    
{    
  String url=null;    
     
  if(jump=="back")    
  {    
    url="javascript:history.go(-1);\n";  //返回上一页    
  }    
  else if(jump=="home")    
  {    
  url="javascript:window.location.href='index.jsp';\n";  //返回首页    
  }    
  else if(jump=="")    
  {    
  url="";    
  }    
  else    
  {    
  url="javascript:window.location.href='"+jump+"';\n";        /返回指定页    
  }    
  String script_start="<script language=\"javascript\">\n";     
  String script_end="</script>";    
  String go=script_start+url+script_end;    
  return go;    
}   

在Ation中用法

response.setContentType("text/html; charset=UTF-8");   
response.setHeader("Cache-Control", "no-cache");   
PrintWriter out = response.getWriter();   
  
String jump = ju.jump("home");   
out.println(jump);