正则表达式-验证Email

学习过程中随手写的一些测试的代码，记录下来以备日后查看

也希望能给别人些许的帮助

 

		System.out.println(".-".matches("[.-]*"));// true
		System.out.println(".".matches("[.-]*"));// true
		System.out.println("".matches("[.-]*"));// true

		System.out.println("".matches("[\\w[.-]]*"));// true
		System.out.println("".matches("[\\w[.-]]+"));// false

		System.out.println("dfg_33.dd-ff@@".matches("[\\w[.-]]+@{1}"));// false
		System.out.println("dfg_33.dd-ff".matches("[\\w[.-]]+@{1}"));// false
		System.out.println("df@g_33.dd-ff@".matches("[\\w[.-]]+@{1}"));// false

		System.out.println("dfg_33.dd-ff@".matches("[\\w[.-]]+@{1}[\\w[.-]]+"));// false
		System.out.println("xxx_yy123-zz.hh@163."
				.matches("[\\w[.-]]+@{1}[\\w[-]]+.\\w+"));// false

		System.out.println("[e-mail]"
				.matches("[\\w[.-]]+@{1}[\\w[.-]]+[.]\\w+"));
		
		System.out.println("[e-mail]"
				.matches("[\\w[.-]]+@[\\w[.-]]+\\.\\w+"));