读取html文件并替换jsp中的字符串
[英]Read html file and replace string in jsp
问题描述
How to append some text in div with id="sw" and befor "<-- adding some thing here />" and write in response output in JSP ? 
如何在带有id =“ sw”的div中附加一些文本，并在“ <-在此处添加一些内容/>”之前在JSP中编写响应输出？
"index_012.html content is: “ index_012.html的内容是：
<html><head></head><body>
<div id="maincontent" class="maincontent">
<section id="mainthecontent">
<div id="swRight"></div>
<div id="sw" >
<!--adding some thing here-->
</div>
<div class="clear"></div>
</section>
<div class="clear"></div>
</div>
</body></html>
my jsp code is : 我的jsp代码是：
FileReader fr = new FileReader("index_012.html");
BufferedReader br = new BufferedReader(fr);
StringBulder addingContent= "<div>Main Content</div>";
StringBulder result="";
String line = null;
// finding place to adding StringBulder
int contentPlace = -1;
while((line=br.readLine()) != null && contentPlace==-1){
int swIndex = line.indexOf("\"sw\"");
contentPlace = line.indexOf(">",swIndex);
}
if(contentPlace>-1){//contentPlace is index of where i must append "addingContent"
--------i need help here ----------
result = br.append(addingContent , contentPlace);
--------i need help here ----------
}
and then this jsp tag 然后这个jsp标签
<%= result %>
I don't need any change in index_012.html or any other file 我不需要index_012.html或任何其他文件的任何更改
write in response output 写响应输出
in Other word how to read file as StringBulder --> replace somthing --> write to response ?? 换句话说，如何将文件读取为StringBulder->替换东西->写入响应？
2 个解决方案
解决方案1
0 2015-03-17 15:30:14
You need a BufferedWriter for write in a file. 您需要BufferedWriter才能写入文件。
Is better if you open a temporary file in writing mode, then you can delete the original file and rename the temporary file. 如果以写入模式打开临时文件，则更好，然后可以删除原始文件并重命名该临时文件。
I think you need something like https://stackoverflow.com/a/8563446/3785263 我认为您需要类似https://stackoverflow.com/a/8563446/3785263的内容
解决方案2
0 2015-03-17 18:13:57
<%@page import="java.io.BufferedReader"%>
<%@page import="java.io.FileReader"%>
<%@page import="java.io.File"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<% StringBulder addingContent= "<div>Main Content</div>"; %>
<% FileReader fr = new FileReader("G:\\index_jeymarble.html");%>
<% BufferedReader br = new BufferedReader(fr);%>
<% String line = null;%><% while ((line = br.readLine()) != null) {%>
<%= line%><% if (line.indexOf("\"sw\"")>-1 ) { %><%= addingContent %>
<%}%>
<%}%>
If any one has any idea to use regexp comment And there is some problem in pageEncoding. 如果任何人有使用regexp注释的想法，则pageEncoding中存在一些问题。
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