Spring MVC annotations Access to the controller and how the form data is received, including methods for receiving date types and objects directly

Configuring Scanners in Spring

<!--SPRINGMVC Scanner--

<context:component-scan base-package= "Com.beifeng.servlet"/>

Building a controller class

@Controller

@RequestMapping (value= "/sys/")

Public class Regcontroller {

@RequestMapping (value= "Reg.do", Method=requestmethod. POST)

Public String Reg () {

System. out. println ("-User Registration--");

return "Index";

}

}

Note When using annotations cannot be used The mapping of the class name controller that controls the class, otherwise it will not be found

<bean class= "Org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" ></bean>

The data that receives the foreground form can also be received through the httpservletrequest or through the form field name or through the object.

1. Array of receive direct write array
2. A date type's receive can be formatted by using the Initbinder function to define the date conversion

/**

* Get page data via HttpServletRequest

*

* @return

*/

@RequestMapping ("Reg1.do")

Public String REG1 (HttpServletRequest request) {

String userId = Request.getparameter ("UserId");

String USERPW = Request.getparameter ("USERPW");

SYSTEM.OUT.PRINTLN ("Account number:" + userId);

System.out.println ("Password:" + USERPW);

Return "index";

}

/**

* Get your Name

*

* @return

*/

@RequestMapping ("Reg2.do")

public string REG2 (string userName) {

System.out.println ("Name:" + userName);

Return "index";

}

@RequestMapping ("Reg3.do")

Public String reg3 (Integer userId, String userName, Date userbrithday) {

SYSTEM.OUT.PRINTLN ("Account number:" + userId);

System.out.println ("Name:" + userName);

System.out.println ("Birthday:" + userbrithday);

Return "index";

}

/**

* Gets the value of the check box: Multiple values

*

* @param Xqs

* @return

*/

@RequestMapping ("Reg4.do")

Public String REG4 (string[] xqs) {

for (String Xq:xqs) {

System.out.println ("Interest:" + XQ);

}

Return "index";

}

/**

* Get page parameters by object

*

* @param Xqs

* @return

*/

@RequestMapping ("Reg5.do")

Public String reg5 (UserInfo user) {

SYSTEM.OUT.PRINTLN (user);

Return "index";

}

/**

* Add time to the property editor

*/

@InitBinder

public void Initbinder (Servletrequestdatabinder bin) {

Bin.registercustomeditor (Date.class, New Customdateeditor (

New SimpleDateFormat ("Yyyy-mm-dd"), true);

}

Spring MVC annotations Access to the controller and how the form data is received, including methods for receiving date types and objects directly