java获取静态页面内容

package collection_map;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Test {
private static final String regEx_script = "<script[^>]*?>[\s\S]*?<\/script>"; // 定义script的正则表达式
private static final String regEx_style = "<style[^>]*?>[\s\S]*?<\/style>"; // 定义style的正则表达式
private static final String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
private static final String regEx_space = "\s*| | | ";//定义空格回车换行符
public static String delHTMLTag(String htmlStr) {
Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
Matcher m_script = p_script.matcher(htmlStr);
htmlStr = m_script.replaceAll(""); // 过滤script标签

Pattern p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);
Matcher m_style = p_style.matcher(htmlStr);
htmlStr = m_style.replaceAll(""); // 过滤style标签

Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
Matcher m_html = p_html.matcher(htmlStr);
htmlStr = m_html.replaceAll(""); // 过滤html标签

Pattern p_space = Pattern.compile(regEx_space, Pattern.CASE_INSENSITIVE);
Matcher m_space = p_space.matcher(htmlStr);
htmlStr = m_space.replaceAll(""); // 过滤空格回车标签
return htmlStr.trim(); // 返回文本字符串
}
public static String getTextFromHtml(String htmlStr){
htmlStr = delHTMLTag(htmlStr);
htmlStr = htmlStr.replaceAll(" ", "");
htmlStr = htmlStr.substring(0, htmlStr.indexOf("。")+1);
return htmlStr;
}
public static void main(String[] args) {
// String regEx_script = "<script[^>]*?>[\s\S]*?<\/script>"; // 定义script的正则表达式
// String regEx_style = "<style[^>]*?>[\s\S]*?<\/style>"; // 定义style的正则表达式
// String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
// String regEx_space = "\s*| | | ";//定义空格回车换行符
URL url;

try {
// get URL content
url = new URL("http://ssl.gongyi.qq.com/m/weixin/detail_yqj_commentList.html?pg=2&did=1215372601201609087100023344&oid=oproJj0dWhq4R_jCp3iYZgb3cbPY");//目标URL
URLConnection conn = url.openConnection();//打开URL

// open the stream and put it into BufferedReader
BufferedReader br = new BufferedReader(
new InputStreamReader(conn.getInputStream(),"utf-8"));

String inputLine;

//save to this filename
String fileName = "test.txt";//建立URL
File file = new File(fileName);

if (!file.exists()) {
file.createNewFile();
}

//use FileWriter to write file
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);

while ((inputLine = br.readLine()) != null) {
// bw.write(inputLine.replaceAll("[^(0-9\u4e00-\u9fa5)]", ""));
String str = getTextFromHtml(inputLine);
bw.write(str);
}

bw.close();
br.close();

System.out.println("Done");

} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

}
}