那肯定不行了,因为replace替换的是字符,不是字符串,
可以自己写一个函数
/** 把一个字符中的某些字符串替换为另外的字符串
*
* @param sString 传进的字符串字符串
* @param sOld 串中要替换的字符串
* @param sNew 串中要替换成的新的字符串
* @return 替换完成后要返回的字符串
*/
public static String replaceChars(String sString,String sOld,String sNew) {
try {
for (int i = 0; i <=sString.length()-sOld.length(); i ++) {
if (sString.substring(i, i + sOld.length()).equals(sOld)) {
sString = sString.substring(0, i) + sNew + sString.substring(i + sOld.length());
i = i + sNew.length()-1;
}
}
return sString;
} catch(Exception ex) {
ex.printStackTrace();
return sString;
}
}
可以自己写一个函数
/** 把一个字符中的某些字符串替换为另外的字符串
*
* @param sString 传进的字符串字符串
* @param sOld 串中要替换的字符串
* @param sNew 串中要替换成的新的字符串
* @return 替换完成后要返回的字符串
*/
public static String replaceChars(String sString,String sOld,String sNew) {
try {
for (int i = 0; i <=sString.length()-sOld.length(); i ++) {
if (sString.substring(i, i + sOld.length()).equals(sOld)) {
sString = sString.substring(0, i) + sNew + sString.substring(i + sOld.length());
i = i + sNew.length()-1;
}
}
return sString;
} catch(Exception ex) {
ex.printStackTrace();
return sString;
}
}
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import java.io.*;public class CodeFilter{
public CodeFilter() {}
public static String change(String s) {
s = toHtml(s);
return s;
} //特殊字符转为Html
public static String toHtml(String s) {
s = Replace(s,"&","&");
s = Replace(s,"<","<");
s = Replace(s,">",">");
s = Replace(s,"\t"," ");
s = Replace(s,"\r\n","\n");
s = Replace(s,"\n","<br>");
s = Replace(s," "," ");
s = Replace(s,"'","'");
s = Replace(s,"\\","\");
return s;
}
//逆
public static String unHtml(String s){
s = Replace(s,"<br>","\n");
s = Replace(s," "," ");
return s;
}
//Replace
public static String Replace(String source,String oldString,String newString) {
if(source == null) return null;
StringBuffer output = new StringBuffer();
int lengOfsource = source.length();
int lengOfold = oldString.length();
int posStart = 0;
int pos;
while((pos = source.indexOf(oldString,posStart)) >= 0) {
output.append(source.substring(posStart,pos));
output.append(newString);
posStart = pos + lengOfold;
}
if(posStart < lengOfsource) {
output.append(source.substring(posStart));
}
return output.toString();
}}