j 2 eeのajax

  
  
  
  

   
   
   
   
<td> 
   
   
   
   
                           : 
   
   
   
   
                    </td> 
   
   
   
   
                    <td> 
   
   
   
   
                        <input type="text" name="loginname" id="loginname" onblur="javascript:clickButton()"/> 
   
   
   
   
                        &nbsp;&nbsp; 
   
   
   
   
                        <font color="red">*</font> 
   
   
   
   
 
   
   
   
   
                    </td> 
   
   
   
   
                    <td id="tes" style="color:red" ></td> 
   
   
   
   
 
   
   
   
   
 <SCRIPT type="text/javascript"> 
   
   
   
   
         
   
   
   
   
     function clickButton() 
   
   
   
   
 
   
   
   
   
            {    
   
   
   
   
                var url = 'jaaction'; 
   
   
   
   
                var params = { 
   
   
   
   
                        name:$('#loginname').attr('value') //attr('value')   
   
   
   
   
                 }; 
   
   
   
   
                 jQuery.post(url, params, callbackFun, 'json'); 
   
   
   
   
             } 
   
   
   
   
 
   
   
   
   
             function callbackFun(data) 
   
   
   
   
 
   
   
   
   
            {       
   
   
   
   
                    $('#tes').html(data.result)  //html   
   
   
   
   
                //  HelloWorld  message   
   
   
   
   
                     //          
   
   
   
   
             } 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
     
   
   
   
   
 
   
   
   
   
    document.write("<h1>hello world</h1>"); </script> 
  
  
  
  

  
  
  
  

   
   
   
   
package com.action.user; 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
import java.util.List; 
   
   
   
   
 
   
   
   
   
import org.aspectj.weaver.patterns.ThisOrTargetAnnotationPointcut; 
   
   
   
   
import org.springframework.context.ApplicationContext; 
   
   
   
   
import org.springframework.context.support.ClassPathXmlApplicationContext; 
   
   
   
   
 
   
   
   
   
import com.dao.userdao.IUserinfoDAO; 
   
   
   
   
import com.dao.userdao.Userinfo; 
   
   
   
   
import com.opensymphony.xwork2.ActionSupport; 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
public class JaAction extends ActionSupport { 
   
   
   
   
    private String name;  
   
   
   
   
    private String result; 
   
   
   
   
 
   
   
   
   
    public void setName(String name) {  
   
   
   
   
        this.name = name;  
   
   
   
   
    } 
   
   
   
   
 
   
   
   
   
    public String getName() { 
   
   
   
   
        return name; 
   
   
   
   
    } 
   
   
   
   
 
   
   
   
   
    public String getResult() {  
   
   
   
   
        return result;  
   
   
   
   
    } 
   
   
   
   
 
   
   
   
   
    public void setResult(String result) { 
   
   
   
   
        this.result = result; 
   
   
   
   
    } 
   
   
   
   
    @Override 
   
   
   
   
    public String execute() throws Exception { 
   
   
   
   
        ApplicationContext ctx = new ClassPathXmlApplicationContext( 
   
   
   
   
                "applicationContext.xml"); 
   
   
   
   
        IUserinfoDAO dao = (IUserinfoDAO) ctx.getBean("UserinfoDAO"); 
   
   
   
   
        
   
   
   
   
        if (!dao.findByLoginname(this.name).isEmpty()) { 
   
   
   
   
            System.out.println("lj"); 
   
   
   
   
            setResult("    "); 
   
   
   
   
            return SUCCESS; 
   
   
   
   
        } else { 
   
   
   
   
            System.out.println("llj"); 
   
   
   
   
            setResult("      "); 
   
   
   
   
            return SUCCESS; 
   
   
   
   
        } 
   
   
   
   
    } 
   
   
   
   
}