PatternValid.java 文件源码

private String getDes(String str){
    java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("[a-z]{6,7}\\s*[=]\\s*");
    Matcher matcher = pattern.matcher(str);
    boolean isFindRegexp = false;
    int beginIndex = -1,endIndex = -1,count = 0;
    while (matcher.find()) {
        count++;
        if (!isFindRegexp && matcher.group().matches("message\\s*[=]\\s*")) {
            isFindRegexp = true;
            beginIndex = matcher.end();
            continue;
        }
        if(isFindRegexp){
            endIndex = matcher.start();
            break;
        }
    }
    if(count==1){
        return str.substring(beginIndex+1,str.lastIndexOf("\""));
    }else{
        if(endIndex==-1){
            return str.substring(beginIndex+1,str.lastIndexOf("\""));
        }else{
            str = str.substring(beginIndex,endIndex);
            return str.substring(1,str.lastIndexOf("\""));
        }
    }
}