客户端使用VB通过soap访问webservice，汉字通过utf8编码，服务端解析失败，错误如下
java.lang.Exception:+XML文档格式不正确：2+字节+UTF-8+序列的无效字节+2。
源提交的xml文档如下：
<?xml version="1.0" encoding="GBK"?>
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------解决思路----------------------
不是提示你格式不对了么，你再仔细比对下XML的格式吧