字符串分割怎么会有问题?在线等待 用 strTokenizer.hasMoreElements() 判断. 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 中间有的字符串为空,当然会有null值了。 为什么不使用hasMoreTokens()来让系统自己检查还有多少个字符串元尚未被取出来?数似乎不太明智.谢谢. strLine是从文件中读出来的,应该分割成62个字符串,要分别写到数据库的.因为文件中,两个逗号之间有空值,因而造成了这样的错误.是不是要自己写类分割?快帮帮忙!我急着用!! StringTokenizer strTokenizer = new StringTokenizer(strLine,",", true);String strTmp;for (int i = 0; i < 62; i++){ strTmp = strTokenizer.nextToken(); if( strTmp.equals(",")) strTmp = ""; System.err.println("strTmp" + i + "=" + strTmp);} sorry, 上一版不对正确的解法String strLine = "01050000,20020506,181,6448,1,0,0,,3780,3780,0,0,0,0,0,0,0,6220,3600,0,0,0,0,0,0,0,0,0,0,0,0,0,0,180,3600,0,0000000013,1,2,0,0,0,2, ,0,5100,0,4,0406,,1147 ,0,1147 ,1147 , ,0, ,0,,20020506114752,会食 ,";StringTokenizer strTokenizer = new StringTokenizer(strLine,",",true);String strTmp="";int i=0;while ( strTokenizer.hasMoreElements()){ String s = strTokenizer.nextToken(); if( s.equals(",")) { System.err.println("strTmp" + (i++) + "=" + strTmp); strTmp=""; }else strTmp = s;}System.err.println("strTmp" + (i++) + "=" + strTmp); java中FileOutputStream类的使用 java 如何取得图片的宽度,厘米而非象素 困扰我的通信问题 java自定义异常 按钮位置的设置 有关comparable,谢谢!!!! 用正则表达式怎样取一对标签中的内容? 关于从socket读取数据被挂起的问题 关于java三元运算符的 ******************请问这样java里怎样实现,100分,可以UP******************** Jbuilder 6.0 如何注册 高分求助!!!
因为文件中,两个逗号之间有空值,因而造成了这样的错误.
是不是要自己写类分割?
快帮帮忙!我急着用!!
String strTmp;
for (int i = 0; i < 62; i++)
{
strTmp = strTokenizer.nextToken();
if( strTmp.equals(","))
strTmp = "";
System.err.println("strTmp" + i + "=" + strTmp);
}
正确的解法
String strLine = "01050000,20020506,181,6448,1,0,0,,3780,3780,0,0,0,0,0,0,0,6220,3600,0,0,0,0,0,0,0,0,0,0,0,0,0,0,180,3600,0,0000000013,1,2,0,0,0,2, ,0,5100,0,4,0406,,1147 ,0,1147 ,1147 , ,0, ,0,,20020506114752,会食 ,";
StringTokenizer strTokenizer = new StringTokenizer(strLine,",",true);
String strTmp="";
int i=0;
while ( strTokenizer.hasMoreElements())
{
String s = strTokenizer.nextToken();
if( s.equals(",")) {
System.err.println("strTmp" + (i++) + "=" + strTmp);
strTmp="";
}else
strTmp = s;
}
System.err.println("strTmp" + (i++) + "=" + strTmp);