在servlet里面写就可以了
引入一系列包
import java.io.IOException
import java.io.PrintWriter
import javax.servlet.ServletException
import javax.servlet.ServletRequest
import javax.servlet.ServletResponse
import javax.servlet.http.HttpServlet
import javax.servlet.http.HttpServletRequest
import javax.servlet.http.HttpServletResponse
import java.io.*
public class Servlet1 extends HttpServlet {
public void doGet(ServletRequest req,ServletResponse res)throws ServletException, IOException{try{PrintWriter pw=res.getWriter()//在浏览器输出需要
pw.println("<script<script")}catch(exception e){="" e.printstacktrace()="" 为发现调试错误}}}=""
如下：public static String do_post(String url, List<NameValuePair> name_value_pair) throws IOException {
String body = "{}"
DefaultHttpClient httpclient = new DefaultHttpClient()
try {
HttpPost httpost = new HttpPost(url)
httpost.setEntity(new UrlEncodedFormEntity(name_value_pair, StandardCharsets.UTF_8))
HttpResponse response = httpclient.execute(httpost)
HttpEntity entity = response.getEntity()
body = EntityUtils.toString(entity)
} finally {
httpclient.getConnectionManager().shutdown()
}
return body
}
public static String do_get(String url) throws ClientProtocolException, IOException {
String body = "{}"
DefaultHttpClient httpclient = new DefaultHttpClient()
try {
HttpGet httpget = new HttpGet(url)
HttpResponse response = httpclient.execute(httpget)
HttpEntity entity = response.getEntity()
body = EntityUtils.toString(entity)
} finally {
httpclient.getConnectionManager().shutdown()
}
return body
}
java处理html指定标签最好用正则表达式。例如要去除html中所有的h1标签和类容就可以用下面的演示代码：
package konw.regimport java.io.BufferedReader
import java.io.BufferedWriter
import java.io.FileNotFoundException
import java.io.FileReader
import java.io.FileWriter
import java.io.IOException
import java.util.regex.Matcher
import java.util.regex.Pattern
public class RemoveTag
{
public static void main(String[] args)
{
FileReader fr
String content =null
String regex = "<[Hh]1>.*</[Hh]1>"
try
{
fr = new FileReader("tag.html")
BufferedReader br = new BufferedReader(fr)
String str = null
StringBuffer sb = new StringBuffer()
while((str = br.readLine()) != null)
{
sb.append(str+"\n")
}
content = sb.toString()
br.close()
} catch (FileNotFoundException e)
{
e.printStackTrace()
} catch (IOException e)
{
e.printStackTrace()
}
Pattern pattern = Pattern.compile(regex)
Matcher matcher = pattern.matcher(content)
StringBuffer sb1 = new StringBuffer()
while(matcher.find())
{
sb1.append(matcher.replaceAll("")+"\n")
}
try
{
FileWriter fw = new FileWriter("tag.html")
BufferedWriter bw = new BufferedWriter(fw)
fw.write(sb1.toString())
bw.close()
} catch (IOException e)
{
e.printStackTrace()
}
}
}
