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类似于asp中htmlencode函数的jsp函数

摘要: 类似于asp中htmlencode函数的jsp函数

public static String asHTML(String text) {
if (text == null)
return "";
StringBuffer results = null;
char[] orig = null;
int beg = 0, len = text.length();
for (int i = 0; i < len; ++i){
char c = text.charAt(i);
switch (c){
case 0:
case "&":
case "<":
case ">":
case """:
if (results == null){
orig = text.toCharArray();
results = new StringBuffer(len+10);
}
if (i > beg)
results.append(orig, beg, i-beg);
beg = i + 1;
switch (c){
default: // case 0:
continue;
case "&":
results.append("&");
break;
case "<":
results.append("<");
break;
case ">":
results.append(">");
break;
case """:
results.append(""");
break;
}
break;
}
}
if (results == null)
return text;
results.append(orig, beg, len-beg);
return results.toString();
}
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