java工具包截取字符长度
package cn.jxsme.util.tool;/*
* autho huangjin green eat
*Oct 17, 2008
*/
public class CharLong {
public static String chop(String orignalString,int length,String chopedString) {
if (orignalString==null||orignalString.length()==0) {
return orignalString;
}
orignalString=orignalString.replaceAll(" "," ");
if (orignalString.length()<length) {
return orignalString;
}
StringBuffer buffer=new StringBuffer(length);
length=length*2;
int count=0;
int stringLength=orignalString.length();
int i=0;
for (;count<length&&i<stringLength;i++) {
char c=orignalString.charAt(i);
if (c<'\u00ff') {
count++;
} else {
count+=2;
}
buffer.append(c);
}
if (i<stringLength) {
buffer.append(chopedString);
}
return buffer.toString();
}
}
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