编码问题之:java.io.UTFDataFormatException: Invalid byte 2 of 2-byte UTF-8 sequence.

今天在编码的时候遇到如下问题

java.io.UTFDataFormatException: Invalid byte 2 of 2-byte UTF-8 sequence.

函数源码：

static InputStream String2InputStream(String str) throws Exception{
ByteArrayInputStream stream = new ByteArrayInputStream()
return stream;
}

实现的功能将一个xml字符串转换为Stream类型。

调用时的源码

String ExpXmlText ="" +
" elbert_app_dsc005" +
" wangwang101112347" +
" 1236235618357" +
" a2e82a649b38ad10790160ec40e282af" +
" Yes" +
" elb_aui_005" +
" USER8B38B4C13EFE7276F75889E3123C4428" +
" "+util.TimeHelp.getTimestamp_BeforeNDay(65)+" 00:00:00" +
" "+util.TimeHelp.getTimestamp_BeforeNDay(7)+" 23:59:59" +
" http://mall.alisoft.com/apps/subsc/subscDisplay!execute.jspa?appId=elbert_app_dsc005" +
" " +
"" +
"";

调用

String2InputStream(ExpXmlText )；

结果报：

java.io.UTFDataFormatException: Invalid byte 2 of 2-byte UTF-8 sequence.

经查时由于声明的ExpXmlText 是UTF-8编码的，而转换的时候使用默认的编码是gbk的

查明原因后，将原函数修订如下

static InputStream String2InputStream(String str) throws Exception{
ByteArrayInputStream stream = new ByteArrayInputStream(str.getBytes("utf-8"));
return stream;
}

问题得到解决