There is a good image which directly shows Spring Integration Model .
Open netbeans,choose new "project--javaWeb",then click "next" twice,at the last step,select "Spring Web MVC" frame.Now,a simple spring frame has been built in your netbeans IDE.
This time ,i practise to develop a login demo.First of all , build a jsp page named login.jsp and write following code in this page.
<body>
<form name="form1" action="login.do" method="POST">
<table border="1" width="200">
<tr>
<td colspan="2">登录窗口</td>
</tr>
<tr>
<td>用户名</td>
<td><input type="text" name="username" size="10"></td>
</tr>
<tr>
<td>密码</td>
<td><input type="password" name="password" size="10"></td>
</tr>
<tr>
<td colspan="2"><input type="submit" name="submit" value="登录"><a href="register.do?method=init">注册新用户</a></td>
</tr>
</table>
</form>
</body>
besides,create a form class which is a orginal JavaBean class and contains relative variable of login.jsp.
public class LoginForm {
private String username;
private String password;
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
}
For the more,create a new login control named LoginAction.java .
protected ModelAndView onSubmit(HttpServletRequest request,HttpServletResponse response,Object command,BindException errors) throws Exception{
LoginForm loginForm=(LoginForm)command;
if(isValid(loginForm)){
request.getSession().setAttribute(Constants.USERNAME_KEY,loginForm.getUsername());
return new ModelAndView(getSuccessView());
}else{
Map modle=errors.getModel();
modle.put("loginForm", loginForm);
return new ModelAndView(getFormView(),modle);
}
}
private boolean isValid(LoginForm loginForm) {
if(loginForm.getUsername().equals("admin") || loginForm.getPassword().equals("admin")){
return true;
}else{
return false;
}
}
At last,configure controller mapping and controller.
controller mapping
<bean id="loginMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/login.do">loginAction</prop>
</props>
</property>
</bean>
controller
<bean id="loginAction"
class="com.demo.spring.actions.LoginAction">
<property name="commandClass">
<value>com.demo.spring.forms.LoginForm</value>
</property>
<!-- return the failure page -->
<property name="formView">
<value>login</value>
</property>
<!--return the success page-->
<property name="successView">
<value>welcome</value>
</property>
</bean>
Enjoy your spring tour~~
Reference:
http://www.ibm.com/developerworks/cn/java/wa-spring1/spring_framework.gif
《开发者突击：java web主流框架整合开发 j2ee+Structs+Hibernate+Spring》 刘中兵编著 ，电子工业出版社