Springmvc simple pass-through value

Before learning Springmvc, I felt his value was magical: simple, fast and efficient.

Today write a few simple values to share with you, hope to be helpful to everyone.

One

Forward from the back:

(1)

@Controller @requestmapping (value={"/hello"}) Public classHellocontroller {@RequestMapping (value={"Sub"})     PublicModelandview Submit (HttpServletRequest request)throwsException {//TODO auto-generated Method StubModelandview M=NewModelandview (); M.addobject ("OK", "Hello"); M.setviewname ("Success"); returnm; }}

Put what you want to pass in AddObject (String,object), the value is Object type, everything can be put.

Setviewname () is the setting to which page (success.jsp page) to jump to.

${requestscope} or ${ok} can be removed from the success.jsp page. is not very simple and quick.

It can also be transmitted in this way:

@Controller @requestmapping (value={"/user"})  Public class Usercontroller {    @RequestMapping (value={"/get"})    publicthrows  Exception {       modelandview mv=new modelandview ();       
　　　  Mv.addobject ("OK", user.getusername () + "--" +User.getpassword ());       Mv.setviewname ("Success");　　       return  mv; }}

The front end is a simple form form:

<form action="User/get " method="POST">

<input type="text" name="username" id= "username" >

<input type="text" name="password" id= "password" >

<input type="Submit">

</form>

(2) The return value may not be Modelandview

@RequestMapping (value={"/map"})    public String  throws  Exception {map.put ( "Ok1", user);       Model.addattribute ("Ok2", user);       Modelmap.addattribute ("Ok3", user);  return "show";}

Two

From the past:

(1)

@RequestMapping (value={"Ant/{username}/topic/{topic}"},method={requestmethod.get})    public  modelandview Ant (           @PathVariable (value= "username") String username,           @PathVariable (value = "topic") String topic           throws  Exception {       //  TODO auto-generated method Stub       modelandview m=new  Modelandview ();       SYSTEM.OUT.PRINTLN (username);       SYSTEM.OUT.PRINTLN (topic);  return  m;    }

The front end is like this:

<a href="Hello/ant/tom/topic/cat">ant</a>

Corresponds to value={"Ant/{username}/topic/{topic}"} One by one.

It can also be in this form:

@RequestMapping (value={"/regex/{number:\\d+}-{tel:\\d+}"})    public  Modelandview regex (           @PathVariable (valueint number ,           @PathVariable (Value= "Tel") String Tel            throws  Exception {       //  TODO auto-generated method stub        modelandview m=new  Modelandview ();       SYSTEM.OUT.PRINTLN (number);       SYSTEM.OUT.PRINTLN (tel);        return m;    }

The front end is like this:

<a href="hello/regex/100-111">regex(Regular) </a>

(2) This is a key transfer value:

@RequestMapping (value={"/ok1"})    public String  throws  Exception {       SYSTEM.OUT.PRINTLN (username);        return "Show";    }

The front end is like this:

<a href="User/ok1?username=tom"> Key value </a>

This is a non-key pass value:

@RequestMapping (value={"/ok2"})    public String  throws  Exception {             SYSTEM.OUT.PRINTLN (username);       SYSTEM.OUT.PRINTLN (password);              return "Show";    }

The front end is like this:

<a href="user/ok2?username=tom&password=111"> Non-key transfer value </a>

The interesting thing is that it can accurately correspond to two values.

Springmvc simple pass-through value