struts2+jquery+hibernate自动提示框
使用struts2+jquery+hibernate实现了一个自动提示框
jsp页面为（注意这里引入了jquery-1.6.js和jquery-ui-1.8.10.custom.min.js）：
<%@ page contentType="text/html; charset=gbk" pageEncoding="gbk"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>自动提示框</title>
<script type="text/javascript" src="js/jquery-1.6.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.8.10.custom.min.js"></script>
<script type="text/javascript">
$(function(){
$("#autoName").autocomplete({
minLength : 1,
source : function(request,response){
var studentNameIndex =$("#autoName").val();
var url = "ajaxStudentName.action";
var params = {
//增加encodeURI以支持中文
'studentNameIndex':encodeURI(studentNameIndex)
};
$.post(url, params, function callback(result,textStatus){
alert(result);
if(textStatus == 'success'){
if(result!=''){
var tmp = result.split(",");
response(tmp);
}else{
response(result);
}
}
});
}
});
});
</script>
</head>
<body>
<input id="autoName" name="studentName" maxlength="10"/>
</body>
</html>
struts的配置文件为:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"
"http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="default" extends="struts-default" namespace="/">
<action name="ajaxStudentName"
class="com.test.action.AjaxAction" method="getStudentName">
</action>
</package>
</struts>
struts action：
package com.test.action;
import java.net.URLDecoder;
import java.util.Iterator;
import java.util.List;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.test.dao.StudentDAO;
public class AjaxAction extends ActionSupport{
private static final long serialVersionUID = 1L;
private String studentNameIndex;
private String result;
public String execute() throws Exception{
return SUCCESS;
}
public String getStudentName() throws Exception{
studentNameIndex = URLDecoder.decode(studentNameIndex, "utf-8");
StudentDAO studentDAO = new StudentDAO();
List<String> re = studentDAO.getStudentName(studentNameIndex);
re.add("123");
result = "";
if(re!=null && re.size()>0){
Iterator<String> it = re.iterator();
while(it.hasNext()){
String tmp = it.next();
result = result + tmp + ",";
}
result = result.substring(0, result.length()-1);
}
ServletActionContext.getResponse().setContentType("gbk");
ServletActionContext.getResponse().setCharacterEncoding("gbk");
ServletActionContext.getResponse().getWriter().print(result);
return null;
}
public String getResult() {
return result;
}
public void setResult(String result) {
this.result = result;
}
public String getStudentNameIndex() {
return studentNameIndex;
}
public void setStudentNameIndex(String studentNameIndex) {
this.studentNameIndex = studentNameIndex;
}
}
hibernate实现的dao：
package com.test.dao;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class StudentDAO {
public List<String> getStudentName(String studentName){
Configuration conf = new Configuration();
SessionFactory sessionFactory = conf.configure().buildSessionFactory();
Session session = sessionFactory.openSession();
String sql =
"select studentName from Student where studentName like '"+studentName+"%'";
Query query = session.createQuery(sql);
List<String> result = null;
result = query.list();
return result;
}
}
hibernate实现的po：
package com.test.po;
import java.io.Serializable;
public class Student implements Serializable {
private static final long serialVersionUID = 1L;
private Integer studentId;
private Integer studentName;
public Student(){
}
public Integer getStudentId() {
return studentId;
}
public void setStudentId(Integer studentId) {
this.studentId = studentId;
}
public Integer getStudentName() {
return studentName;
}
public void setStudentName(Integer studentName) {
this.studentName = studentName;
}
}
相应的配置文件为：
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
<class name="com.test.po.Student"
table="D_STUDENT">
<id name="studentId" column="studentId" type="java.lang.Integer">
<generator class="assigned"/>
</id>
<property
name="studentName"
column="studentName"
update="true"
insert="true"
type="java.lang.String"
not-null="true"
unique="false"
length="10"
/>
</class>
</hibernate-mapping>
hibernate配置文件：
<?xml version='1.0' encoding='utf-8'?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="show_sql">false</property> <property name="dialect">org.hibernate.dialect.OracleDialect</property> <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property> <property name="connection.url">jdbc:oracle:thin:@192.168.1.1:1522:TESTDB</property> <property name="connection.username">123</property> <property name="connection.password">123</property> <property name=" hibernate.jdbc.batch_size">100</property> <mapping resource="com/test/po/student.hbm.xml" /> </session-factory> </hibernate-configuration>
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd'>
<display-name>test</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
student表的结构只有2列，一列为编号，一列为姓名：
-- Create table create table D_STUDENT ( STUDENTID NUMBER not null, STUDENTNAME VARCHAR2(10) not null )
备注：
1，中文乱码需要特别注意，出现乱码要从3方面查找原因：1，前台传递到后台的数据是否是乱码。2，数据库中查询出的数据是否是乱码。3，后台返回给前台的查询结果是否是乱码。
2，输入需要过滤掉特殊字符或者其他的处理以防止sql注入
