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  • 关于正则表达式的一个简单应用

    package myReplace;

    import java.io.BufferedReader;
    import java.io.BufferedWriter;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.OutputStream;
    import java.io.OutputStreamWriter;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    /**
    *
    * @author jpsoft mengzhijun
    *
    */
    public class DealWithFilesBase {//便捷式一站处理xml,query.jsp,update.jsp文件的下划线问题,支持处理业务扩展,只需将要处理的文件放在桌面生成的ObjectFile文件夹里,然后在桌面生成的result文件夹里寻找修改后的文件即可
    private String deskopPath="^c:\\\\Users\\(\S){0,}\\Desktop$";//桌面路径匹配表达式
    private String xmlFIleMatch=".xml$";//匹配.xml文件名
    private String queryFileMatch="Query.jsp$";//匹配Query.jsp文件名
    private String updateFileMatch="Update.jsp$";//匹配Update.jsp文件名
    private String saveFileMatch=".txt$";//匹配.txt文件名
    private String resultxmlPath="xml";
    private String resultQueryPath="queryJsp";
    private String resultUpdatePath="updateJsp";
    private String objectFilePath="ObjectFile";
    private String resultFilePath="result";
    private String writePath=resultFilePath;//默认路径为result
    private String cHARY=String.valueOf('"');
    private String SOLIDSk=writePath;


    /**
    * 找到电脑桌面的位置
    * @return
    */
    public String getDeskopLocation()
    {
    File file=new File("C:");
    @SuppressWarnings("static-access")
    File []homePath=file.listRoots();
    for(File h:homePath) {
    if(h.isDirectory()){return findDeskop(file).getAbsolutePath();}
    }
    return null;
    }

    /**
    * 搜索计算机桌面的位置
    * @param file
    * @return
    */
    public File findDeskop(File file)
    {
    File tempFile=file;
    if(tempFile.exists()&&tempFile.isDirectory())
    {
    if(tempFile.getName().equals("Desktop")&&isMatch(deskopPath, tempFile.getAbsolutePath())&&(!tempFile.getPath().equals("C:\Users\Default\Desktop"))&&(!tempFile.getPath().equals("C:\Users\Default\Desktop")))

    {return tempFile;}
    File []files=tempFile.listFiles();
    if(files!=null){
    for(File f:files)
    {
    if(f!=null){
    tempFile=findDeskop(f);
    if(tempFile.getName().equals("Desktop")&&isMatch(deskopPath, tempFile.getAbsolutePath())&&(!tempFile.getPath().equals("C:\Users\Default\Desktop"))&&(!tempFile.getPath().equals("C:\Users\Default\Desktop"))){break;};
    }
    }
    }
    }
    return tempFile;
    }

    /**
    * 判断是否匹配,处理文件名
    * @param regex
    * @param objectString
    * @return
    */
    public boolean isMatch(String regex,String objectString)
    {Pattern pattern=Pattern.compile(regex);
    if(regex.equals(deskopPath)){pattern=Pattern.compile(regex,Pattern.CASE_INSENSITIVE);}

    Matcher matcher=pattern.matcher(objectString);
    return matcher.find();
    }

    /**
    * 处理匹配,并返回处理后的结果
    * @param regex
    * @param objectString
    * @return
    */
    public StringBuffer findMatchGroupe(String regex,String objectString,boolean isUpdate)
    {
    StringBuffer sb=new StringBuffer();
    Pattern pattern=Pattern.compile(regex);
    Matcher matcher=pattern.matcher(objectString);
    while(matcher.find())
    {
    if(isUpdate){if(isContainfor_(matcher.group())){matcher.appendReplacement(sb,"id="+cHARY+"for_"+subString(matcher.group().substring(8)));}

    else{ matcher.appendReplacement(sb,subString(matcher.group()));}
    }else{
    matcher.appendReplacement(sb,subString(matcher.group()));
    }

    }
    matcher.appendTail(sb);
    return sb;
    }
    /**
    * 处理for_,针对update.jsp里的id="for_**
    */
    public boolean isContainfor_(String objectString)
    {Pattern pattern=Pattern.compile("id=\Sfor(\w){0,}");
    Matcher matcher=pattern.matcher(objectString);
    return matcher.find();

    }

    /**
    * 扫描目标文件夹的文件
    */
    public void scanFile(String filePath)
    {
    int i=0;
    File file=new File(filePath);
    if(file.isDirectory())
    {
    File[] files=file.listFiles();
    for(File f:files)
    {
    if(f!=null)
    {
    System.out.println("正在执行第"+(++i)+"个文件");
    setWritePath();
    if(isMatch(xmlFIleMatch,f.getName() )){this.writePath=this.writePath+"\"+resultxmlPath+"\"+f.getName() ;}
    if(isMatch(queryFileMatch, f.getName())){this.writePath=this.writePath+"\"+resultQueryPath+"\"+f.getName();}
    if(isMatch(updateFileMatch, f.getName())){this.writePath=this.writePath+"\"+resultUpdatePath+"\"+f.getName();}
    produceResultFiles(readFile(f),this.writePath);
    System.out.println(writePath);

    }
    }
    }
    }
    /**
    * 初始化writePath路径
    */

    public void setWritePath()
    {
    this.writePath=this.SOLIDSk;

    }

    /**
    * 文件读取
    * @param f
    */

    public StringBuffer readFile(File f)
    {

    StringBuffer tBuffer=new StringBuffer();

    InputStream iStream=null;
    InputStreamReader bstream=null;
    BufferedReader bReader=null;
    try {
    iStream=new FileInputStream(f);
    bstream =new InputStreamReader(iStream);
    bReader=new BufferedReader(bstream);

    if(isMatch(saveFileMatch, f.getName())){tBuffer=dealWithTXT(bReader);}
    if(isMatch(xmlFIleMatch,f.getName() )){ tBuffer=dealWithXml(bReader);}
    if(isMatch(queryFileMatch, f.getName())){tBuffer=dealWithQueryJsp(bReader);}
    if(isMatch(updateFileMatch, f.getName())){tBuffer=dealWithUpdateJsp(bReader);}
    } catch (FileNotFoundException e) {}
    finally{

    try {bReader.close();
    bstream.close();
    iStream.close();
    } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }}


    return tBuffer;

    }



    /**
    * 处理带下划线的字符串
    * @param temstring
    * @return
    */
    public String subString(String temstring)
    {
    String mytemp=null;
    for(int i=0;i<temstring.length();i++)
    {
    if("_".equals(temstring.substring(i, i+1)))
    {
    mytemp= temstring.replace(temstring.substring(i,i+2), temstring.substring(i+1, i+2).toUpperCase());
    mytemp= subString(mytemp);
    break;
    }
    }

    return mytemp!=null?mytemp:temstring;
    }

    /**
    * 生成结果文件
    * @param writePath
    */
    public void produceResultFiles( StringBuffer textContent,String mywritePath)
    {

    File file=new File(mywritePath);
    OutputStream foStream=null;
    OutputStreamWriter oWriter=null;
    BufferedWriter bWriter=null;
    if(!file.exists()){try {
    file.createNewFile();
    } catch (IOException e) {
    e.printStackTrace();
    }}
    try {

    foStream=new FileOutputStream(file);

    oWriter=new OutputStreamWriter(foStream);
    bWriter=new BufferedWriter(oWriter);
    bWriter.write(textContent.toString());
    bWriter.flush();
    } catch (IOException e) {
    System.out.println("文件写入失败");
    e.printStackTrace();
    }finally{
    try {
    bWriter.close();
    oWriter.close();
    foStream.close();
    } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }

    }

    }
    /**
    * 处理txt格式文件
    * @param bReader
    * @return
    */
    public StringBuffer dealWithTXT( BufferedReader bReader)
    {String tempString="";
    StringBuffer sBuffer=new StringBuffer();
    try {
    while((tempString=bReader.readLine())!=null)
    {
    sBuffer.append(tempString);
    }
    } catch (IOException e) {

    e.printStackTrace();
    }
    return sBuffer;
    }

    /**
    * 处理xml文件
    * @param bReader
    * @return
    */
    public StringBuffer dealWithXml(BufferedReader bReader)
    {
    String tempString="";
    StringBuffer sBuffer=new StringBuffer();
    try {
    while((tempString=bReader.readLine())!=null)
    {
    tempString=findMatchGroupe(":(\w){0,}", tempString,false).toString();
    sBuffer.append(tempString).append(" ");
    }
    } catch (IOException e) {
    e.printStackTrace();
    }
    return sBuffer;
    }
    /**
    * 处理queryJsp文件
    * @param bReader
    * @return
    */
    public StringBuffer dealWithQueryJsp(BufferedReader bReader)
    {
    String tempString="";
    StringBuffer sBuffer=new StringBuffer();
    try {
    while((tempString=bReader.readLine())!=null)
    {
    tempString=findMatchGroupe("(\{(\w){0,}\S{0,}\})|\{(\w){0,}\S{0,}", tempString,false).toString();
    sBuffer.append(tempString).append(" ");
    }
    } catch (IOException e) {
    e.printStackTrace();
    }
    return sBuffer;
    }
    /**
    * 处理updateJsp
    * @param bReader
    * @return
    */
    public StringBuffer dealWithUpdateJsp(BufferedReader bReader)
    {
    String tempString="";
    StringBuffer sBuffer=new StringBuffer();
    try {
    while((tempString=bReader.readLine())!=null)
    {
    tempString=findMatchGroupe("name=\S(\w){0,}|id=\S(\w){0,}", tempString,true).toString();
    sBuffer.append(tempString).append(" ");
    }
    } catch (IOException e) {
    e.printStackTrace();
    }
    return sBuffer;
    }




    /**
    * 执行
    */
    public void execute()
    { String deskopPath="";
    File file=new File("com.jpsoft.savePath.txt");
    if(!file.exists()){
    try {
    System.out.println("第一次运行,可能需要几分钟,请耐心等待.....");
    file.createNewFile();
    String path=getDeskopLocation();
    produceResultFiles((new StringBuffer()).append(path),file.getName() );
    deskopPath= readFile(file).toString();


    } catch (IOException e) {
    System.out.println("文件创建失败");

    }}
    deskopPath= readFile(file).toString();
    File objectFileContents=new File(deskopPath+"\"+objectFilePath);
    if(!objectFileContents.exists()){objectFileContents.mkdir();System.out.println("目标文件路径创建成功"+" 路径:"+objectFileContents.getPath());}
    File resultFileContents=new File(deskopPath+"\"+resultFilePath);
    if(!resultFileContents.exists()){resultFileContents.mkdir();System.out.println("结果文件夹路径创建成功"+" 路径:"+resultFileContents.getPath());}
    File xmlFileContent=new File(deskopPath+"\"+resultFilePath+"\"+resultxmlPath);
    if(!xmlFileContent.exists()){xmlFileContent.mkdir();System.out.println("xml文件夹路径创建成功"+" 路径:"+xmlFileContent.getPath());}
    File queryFileContent=new File(deskopPath+"\"+resultFilePath+"\"+resultQueryPath);
    if(!queryFileContent.exists()){queryFileContent.mkdir();System.out.println("queryjsp文件夹路径创建成功"+" 路径:"+queryFileContent.getPath());}
    File updateFileContent=new File(deskopPath+"\"+resultFilePath+"\"+resultUpdatePath);
    if(!updateFileContent.exists()){updateFileContent.mkdir();System.out.println("updateJsp文件夹路径创建成功"+" 路径:"+updateFileContent.getPath());}
    deskopPath= readFile(file).toString();
    this.writePath=deskopPath+"\"+resultFilePath;
    this.SOLIDSk=this.writePath;
    scanFile(deskopPath+"/"+objectFilePath);
    System.out.println("运行成功");
    }
    /**
    * @param args
    */
    public static void main(String[] args) {
    DealWithFilesBase dFiles=new DealWithFilesBase();
    dFiles.execute();

    }

    }

    呵呵,可以处理页面的软元素的下划线问题

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  • 原文地址:https://www.cnblogs.com/mengziHEHE/p/3296797.html
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