将字符串的编码格式转换为utf-8

/**
* 将字符串的编码格式转换为utf-8
*
* @param str
* @return Name = new
* String(Name.getBytes("ISO-8859-1"), "utf-8");
*/
public static String toUTF8(String str) {
if (isEmpty(str)) {
return "";
}
try {
if (str.equals(new String(str.getBytes("GB2312"), "GB2312"))) {
str = new String(str.getBytes("GB2312"), "utf-8");
return str;
}
} catch (Exception exception) {
}
try {
if (str.equals(new String(str.getBytes("ISO-8859-1"), "ISO-8859-1"))) {
str = new String(str.getBytes("ISO-8859-1"), "utf-8");
return str;
}
} catch (Exception exception1) {
}
try {
if (str.equals(new String(str.getBytes("GBK"), "GBK"))) {
str = new String(str.getBytes("GBK"), "utf-8");
return str;
}
} catch (Exception exception3) {
}
return str;
}

/**
* 判断是否为空
*
* @param str
* @return
*/
public static boolean isEmpty(String str) {
// 如果字符串不为null，去除空格后值不与空字符串相等的话，证明字符串有实质性的内容
if (str != null && !str.trim().isEmpty()) {
return false;// 不为空
}
return true;// 为空
}

java获取：

String name = TypeUtil.toUTF8(request.getParameter("name"));