struts2学习笔记五（第5讲.Struts2的输入校验）
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2022-03-03 16:12:30
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[b][size=xx-large]Struts2的输入校验[/size][/b]
数据校验是建立在类型转换的基础之上的。
一、在WebRoot根目录下创建一个类似于注册的未使用struts2的页面register.jsp（是用html表单的形式写的）:
二、在包com.test.action中创建一个处理register表单的Action类RegisterAction.java继承ActionSupport类:
三、创建一个输出的success.jsp页面：
四、在struts.xml中创建并配置Action的属性：
五、继续修改RegisterAction.java类，添加验证的信息：
演示效果：
未输入时的初页面：
[img]http://dl.iteye.com/upload/attachment/385709/24cd60c8-88f9-34e8-aaff-015c5415ab72.jpg[/img]
输入全部正确是的页面：
[img]http://dl.iteye.com/upload/attachment/385711/815ae021-a3e8-3b60-b33e-0c1839b06140.jpg[/img]
输入全部不正确时的页面：
[img]http://dl.iteye.com/upload/attachment/385713/d3a10a7d-e492-3167-a075-dda05f7dd777.jpg[/img]
最终的项目文件：（注意:未完，待续）
数据校验是建立在类型转换的基础之上的。
一、在WebRoot根目录下创建一个类似于注册的未使用struts2的页面register.jsp（是用html表单的形式写的）:
<body>
<form action="register" method="post">
<table align="center" width="40%" border="1">
<tr>
<td>username:</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>password:</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td>repassword:</td>
<td><input type="password" name="repassword"></td>
</tr>
<tr>
<td>age:</td>
<td><input type="text" name="age"></td>
</tr>
<tr>
<td>birthday:</td>
<td><input type="text" name="birthday"></td>
</tr>
<tr>
<td>graduation:</td>
<td><input type="text" name="graduation"></td>
</tr>
<tr>
<td><input type="submit" value=" submit "></td>
<td><input type="reset" value=" reset "></td>
</tr>
</table>
</form>
</body>
二、在包com.test.action中创建一个处理register表单的Action类RegisterAction.java继承ActionSupport类:
package com.test.action;
import java.util.Date;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport {
private String usernme;
private String password;
private String repassword;
private int age;
private Date birthday;
private Date graduation;
public String getUsernme() {
return usernme;
}
public void setUsernme(String usernme) {
this.usernme = usernme;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRepassword() {
return repassword;
}
public void setRepassword(String repassword) {
this.repassword = repassword;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public Date getGraduation() {
return graduation;
}
public void setGraduation(Date graduation) {
this.graduation = graduation;
}
@Override
public String execute() throws Exception {
return SUCCESS;
}
}
三、创建一个输出的success.jsp页面：
<body>
<form action="register.action" method="post">
<table align="center" width="40%" border="1">
<tr>
<td>username:</td>
<td>${requestScope.username}</td>
</tr>
<tr>
<td>password:</td>
<td>${requestScope.password }</td>
</tr>
<tr>
<td>age:</td>
<td>${requestScope.age }</td>
</tr>
<tr>
<td>birthday:</td>
<td>${requestScope.birthday }</td>
</tr>
<tr>
<td>graduation:</td>
<td>${requestScope.graduation }</td>
</tr>
</table>
</form>
</body>
四、在struts.xml中创建并配置Action的属性：
<action name="register" class="com.test.action.RegisterAction">
<result name="success">/success.jsp</result>
<result name="input">/register.jsp</result>
</action>
五、继续修改RegisterAction.java类，添加验证的信息：
package com.test.action;
import java.util.Calendar;
import java.util.Date;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport {
private String username;
private String password;
private String repassword;
private int age;
private Date birthday;
private Date graduation;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRepassword() {
return repassword;
}
public void setRepassword(String repassword) {
this.repassword = repassword;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public Date getGraduation() {
return graduation;
}
public void setGraduation(Date graduation) {
this.graduation = graduation;
}
@Override
public String execute() throws Exception {
return SUCCESS;
}
@Override
public void validate() {
if(null == username || username.length() < 6 || username.length() > 10){
this.addFieldError("username", "username invalid");
}
if(null == password || password.length() <6 || password.length() > 10){
this.addFieldError("password", "password invalid");
}
else if(null == repassword || repassword.length() < 6 || repassword.length() > 10){
this.addFieldError("repassword", "repassword invalid");
}
else if(!password.equals(repassword)){
this.addFieldError("password", "two passwords not the same");
}
if(age < 1 || age > 150){
this.addFieldError("age", "age invalid");
}
if(null == birthday){
this.addFieldError("birthday", "birthday invalid");
}
if(null == graduation){
this.addFieldError("graduation", "graduation invalid");
}
if(null != birthday && null != graduation){
Calendar c1 = Calendar.getInstance();
c1.setTime(birthday);
Calendar c2 = Calendar.getInstance();
c2.setTime(graduation);
if(!c1.before(c2)){
this.addFieldError("birthday", "birthday should be before graduation");
}
}
}
}
演示效果：
未输入时的初页面：
[img]http://dl.iteye.com/upload/attachment/385709/24cd60c8-88f9-34e8-aaff-015c5415ab72.jpg[/img]
输入全部正确是的页面：
[img]http://dl.iteye.com/upload/attachment/385711/815ae021-a3e8-3b60-b33e-0c1839b06140.jpg[/img]
输入全部不正确时的页面：
[img]http://dl.iteye.com/upload/attachment/385713/d3a10a7d-e492-3167-a075-dda05f7dd777.jpg[/img]
最终的项目文件：（注意:未完，待续）