Java 正则表达式自义bean
１．因为jdk1.4以下String类未曾使用split 方法，所以为了能够在jdk1.3以下的版本使用，正义了如下类
package pubBean;
import java.util.*;
/**
*
* <p>Title: </p>
* <p>Description:通过分解符分解由特定字符分开的字符串,并把返回一个数组如果 </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author 丁小龙
* @version 1.0
*/
public class Patten {
Vector arravl=new Vector();
String compchar;
public Patten() {
try {
jbInit();
} catch (Exception ex) {
ex.printStackTrace();
}
}
private Vector split(String src,String charat,String self){
int len=src.indexOf(charat);
if(len==-1&&src==null)
return arravl ;
if(len==-1){
arravl.addElement(src);
return arravl;
}else
arravl.addElement(src.substring(0,len));
return split(src.substring(len+charat.length(),src.length()),charat,self);
}
public String[] split(String src,String charat){
arravl.removeAllElements();
Vector retvec=split( src,charat,"1");
if(retvec.size()==0||retvec==null)
return null;
String []arrret=new String[retvec.size()];
for(int i=0;i<retvec.size();i++){
arrret[i]=(String)retvec.elementAt(i);
}
return arrret;
}
public void compile(String com){
this.compchar=com;
}
public String[] split(String src){
arravl.removeAllElements();
String comch="";
if(this.compchar==null){
comch=",";
}else{
comch=this.compchar;
}
Vector retvec=split( src,comch,"1");
if(retvec.size()==0||retvec==null)
return null;
String []arrret=new String[retvec.size()];
for(int i=0;i<retvec.size();i++){
arrret[i]=(String)retvec.elementAt(i);
}
return arrret;
}
private void jbInit() throws Exception {
}
}
２．用法
ｓtring mm=”aaaaaaaa,,,aaa,,,bbbb,,,ddddddd,,,mmm”;
Patten p = new Patten();
p.compile(",,,");
String []arrspt=p. split(mm); 
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