web常用工具类总结

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1、表单后台验证;packagecn.kgli.utils;importjava.util.Enumeration;importjava.util.UUID;importjavax.servlet.http.HttpServletRequest;importorg.apache.commons.beanutils.BeanUtils;publicclassWebUtils{//把request对象中的请求参数封装到bean中publicstaticTrequest2Bean(HttpServletRequestrequest,Classclazz){try{T

2、bean=clazz.newInstance();//username=aapassword=bbemail=aa@sina.comEnumeratione=request.getParameterNames();while(e.hasMoreElements()){Stringname=(String)e.nextElement();//username=aaapassword=123Stringvalue=request.getParameter(name);BeanUtils.setProperty(bean,name,value);}returnbean;}c

3、atch(Exceptione){thrownewRuntimeException(e);}}publicstaticStringmakeId(){//UUID12836位字符returnUUID.randomUUID().toString();}}packagecn.itcast.web.formbean;importjava.util.HashMap;importjava.util.Map;importorg.apache.commons.beanutils.locale.converters.DateLocaleConverter;publicclassRegi

4、sterFormBean{privateStringusername;privateStringpassword;privateStringpassword2;privateStringemail;privateStringbirthday;privateMaperrors=newHashMap();publicMapgetErrors(){returnerrors;}publicvoidsetErrors(Maperrors){this.errors=errors;}publi

5、cStringgetUsername(){returnusername;}publicvoidsetUsername(Stringusername){this.username=username;}publicStringgetPassword(){returnpassword;}publicvoidsetPassword(Stringpassword){this.password=password;}publicStringgetPassword2(){returnpassword2;}publicvoidsetPassword2(Stringpassword2){

6、this.password2=password2;}publicStringgetEmail(){returnemail;}publicvoidsetEmail(Stringemail){this.email=email;}publicStringgetBirthday(){returnbirthday;}publicvoidsetBirthday(Stringbirthday){this.birthday=birthday;}/*privateStringusername;用户名不能为空，并且要是3-8的字符abcdABcdprivateStringpassword

7、;密码不能为空，并且要是3-8的数字privateStringpassword2;两次密码要一致privateStringemail;可以为空，不为空要是一个合法的邮箱privateStringbirthday;可以为空，不为空时，要是一个合法的日期**/publicbooleanvalidate(){booleanisOk=true;if(this.username==null

8、

9、this.username.trim().equals("")){isOk=false;errors.put("username","用户名不能为空！！");}else{