Buffalo之 bind,reply,ajax,view,form应用(一)

 

开发环境:JDK1.5 + Tomcat6.0.24

 

一 发送对象与接收对象(简单转换示例)

 

1 后台类(实体类,服务类)

 

public class User implements Serializable {

 

    private static final long serialVersionUID = 1L;

    private String id = null;  

    private String firstName = null;;

    private String middleName = null;;

    private String familyName = null;;

    private String age = null;

    private String sex = null;

    private List interests = null;

 

//相应的get,set方法,空的构造函数

//重写toString()方法，将会在控制台得到详细的类信息

public String toString(){

       return  org.apache.commons.lang.builder.

ToStringBuilder.reflectionToString(this);

}

}

您可能要问为什么age这个属性要设置为String呢!待会揭晓!

 

public class UserService{

   public User addUser(User user){        

       System.out.println("用户信息: "+user);

       return user;

    }

}

buffalo-service.properties属性文件如下设置:

userService=net.buffalo.service.UserService

2 界面元素

你一定会想到界面各相关元素名字和类的属性名字一样吧!

<div>

    <br><form action="" name="form1">

     姓氏: <input type="Text" name="firstName" id="firstName" ><br>

     名字: <input type="Text" name="middleName" id="middleName" ><br>

     姓名: <input type="Text" name="familyName" id="familyName" ><br>

     年龄: <input type="Text" name="age" id="age" ><br>

     性别: <input type="radio" name="sex" value="1" checked>男性&nbsp;

<input type="radio" name="sex" value="0">女性&nbsp;<br>

爱好:

<input type="checkbox" name="interests" value="阅读" checked>阅读nbsp;    <input type="checkbox" name="interests" value="运动">运动&nbsp;

    <input type="checkbox" name="interests" value="写作">写作&nbsp;

    <input type="checkbox" name="interests" value="游戏">游戏&nbsp;

    <input type="checkbox" name="interests" value="漫画">漫画&nbsp;

    <input type="checkbox" name="interests" value="音乐">音乐&nbsp; 

    </form>

   </div>

 

3 JS引用

<script language="JavaScript" src="script/prototype.js"></script>

<scriptlanguage="JavaScript" src="script/buffalo.js"></script>

4 JS函数

<script language="JavaScript">

var endPoint="<%=request.getContextPath()%>/bfapp";

var buffalo = new Buffalo(endPoint);

funcion addUser(){

var userObj = Buffalo.Form.formToBean("form1",

"net.buffalo.vo.User");

         buffalo.remoteCall("userService.addUser", [userObj], function(reply){

        var user = reply.getResult();

        var userInfo = "姓: "+user.firstName;

        userInfo += "\n名字: "+user.middleName;

        userInfo += "\n全名称: "+user.familyName;

        userInfo += "\n年龄: "+user.age;

        userInfo += "\n性别 : "+user.sex;

        userInfo += "\n年龄: "+user.age;

        userInfo += "\n 爱好: "+user.interests;

       $("form_infomsg").innerHTML=userInfo;    

    });

}

//第二种用法:

var domainObject = "yourdomain.app.Domain";

var object=Buffalo.Form.formToBean("form2", domainObject, true);

 

var object = Buffalo.Form.formToBean("form1", null, false);

assertEqual('JoshSmith', object.username);

assertEqual('1', object.gendor);

assertEqual('A', object.interest[0]);

assertEqual('C', object.interest[1]);

assertEqual('2', object.option[0]);

assertEqual('3', object.option[1]);

assertEqual('submit', object.submit);

 

var object = Buffalo.Form.formToBean("form1", null, true);

assertEqual(null, object.submit);

 

//绑定html元素值

var data = {

           username: "Michael",

           password: "newpass",

           gendor: "boy",

           interest: ["B","C"],

           option1: ["1","3"],

           option2: "3"

       }

       Buffalo.Form.bindForm("form3", data);

        var obj = Buffalo.Form.formToBean("form3");

       assertEqual("Michael", obj.username);

       assertEqual("newpass", obj.password);

       assertEqual("boy", obj.gendor);

       assertEqual("B,C", obj.interest);

       assertEqual("1,3", obj.option1);

       assertEqual("3", obj.option2);

</script>

5 注意事项

Buffalo对于form转换为Bean提供了二种方式,这是普通的应用方式,回答最开始提的问题:Buffalo只对表单中的值作字符串及字符串集合的转换.如你的Bean设置为 int age,它是不会转换的,你就等着看报异常吧.

这个Buffalo是不是提供的这个转换也太不符合实际应用了呀,放心,Buffalo还为你量身定做了第二种强大的转换方式,有了它,你就不用担心了!

 

二 强大的Map转换机制,选自Buffalo Demo示例.

var a = {};

    a[Buffalo.BOCLASS] = "java.util.Map";

    a["a"] = "A";

    a["b"] = true;

    a["c"] = 123.4;

    var u = {};

    u[Buffalo.BOCLASS] = "net.buffalo.demo.simple.User";

    u.id = 234;

    u.name = "<xml here>&";

    u.age = 17;

    u.sex = false;

    u.memo = "very beautiful";

    a["u"] = u;

如以上的方式,就可以发送任意对象了呀.这样你总满意了吧!任何要求都会满足你了呀

 

 Buffalo之 bind,reply,ajax,view,form应用(二)
 http://liuzidong.iteye.com/blog/629898