手机彩票项目结构划分
| 一些类库①md5commons-codec.jar加密 ②字符串的操作commons-lang3-3.0-beta.jar等 // 一、ommons-lang3-3.0-beta.jar 处理字符串
// 非空的判断:①""②null③" "
boolean b1 = StringUtils.isEmpty("");
boolean b11 = StringUtils.isBlank("");
System.out.println("空字符串：b1:" + b1 + ",b11:" + b11);// true,true
boolean b2 = StringUtils.isEmpty(" ");
boolean b21 = StringUtils.isBlank(" ");
System.out.println("空格字符：b2:" + b2 + ",b21:" + b21);// false,true
boolean b3 = StringUtils.isEmpty(" ");
boolean b31 = StringUtils.isBlank(" ");
System.out.println("控制符字符串：b3:" + b3 + ",b31:" + b31);// false,true
String s1 = " ";
System.out.println("trim去后长度:" + StringUtils.trim(s1).length());// 0
System.out.println("strip去后长度:" + StringUtils.strip(s1).length());// 0
String s2 = "i love you sb!";
// 单个字符串替换
System.out.println("单个字符串替换：" + StringUtils.replace(s2, " ", "##")); // i##love##you##sb!
String s3 = "i ~love ~you ~sb!";
// 多个字符串替换
System.out.println("多个字符串替换："+StringUtils.replaceEach(s3, new String[]{" ","~"}, new String[]{"*","&"}));//i*&love*&you*&sb!
// 字符串截取
String info = "<body>..NUM1..NUM2..</body>";
System.out.println("between substring:"+StringUtils.substringBetween(info, "<body>","</body>"));//between substring:..NUM1..NUM2..
// 二、commons-codec.jar 加密相关
DigestUtils.md5("haha");
|
| 1、界面 2、业务 3、网络 具体看笔记.xls的项目管理结构 |
|
|
|
|
|
|
|
|