Hibernate+Spring+Struts2+ExtJS开发CRUD功能

Hibernate+Spring+Struts2+ExtJS开发CRUD功能

1、  入门:

各种开源框架环境及下载:

Hibernate3.x  http://www.hibernate.org/ 需要hibernate core annotations 包。

Spring2.x http://springframework.org/

Struts22.x http://struts.apache.org/2.x/

ExtJS2.X http://extjs.com/

JSONJSON可以到http://www.json.org/ 查看详细内容,这里使用json-lib http://json-lib.sourceforge.net/

本所需要的包:

 Hibernate+Spring+Struts2+ExtJS开发CRUD功能_第1张图片

2、  配置:

1)首先是配置web.xml,配置方法可以在下面的配置文件代码注释中查看,这里主要是Struts2的配置:

    <filter>

        <filter-name>struts2filter-name>

        <filter-class>org.apache.struts2.dispatcher.FilterDispatcherfilter-class>

    filter>

    <filter-mapping>

        <filter-name>struts2filter-name>

        <url-pattern>/*url-pattern>

filter-mapping>

Spring的配置:

    <context-param>

       <param-name>contextConfigLocationparam-name>

       <param-value>/WEB-INF/spring/*.xmlparam-value>

context-param>

    <listener>     <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>

listener>

Web.xml的全部文件:

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>struts2display-name>

   

    <context-param>

        <param-name>contextConfigLocationparam-name>

        <param-value>/WEB-INF/spring/*.xmlparam-value>   

    context-param>

   

    <filter>

        <filter-name>encodingFilterfilter-name>

    <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>

        <init-param>

            <param-name>encodingparam-name>

            <param-value>UTF-8param-value>

        init-param>

    filter>

 

   

    <filter>

        <filter-name>struts2filter-name>

        <filter-class>org.apache.struts2.dispatcher.FilterDispatcherfilter-class>

    filter>

 

    <filter-mapping>

        <filter-name>struts2filter-name>

        <url-pattern>/*url-pattern>

    filter-mapping>

   

    <listener>  <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>

    listener>

 

   

    <listener>

    <listener-class>org.springframework.web.util.IntrospectorCleanupListenerlistener-class>

    listener>

   

    <session-config>

        <session-timeout>10session-timeout>

    session-config>

    <welcome-file-list>

        <welcome-file>index.htmlwelcome-file>

        <welcome-file>index.htmwelcome-file>

        <welcome-file>index.jspwelcome-file>

        <welcome-file>default.htmlwelcome-file>

        <welcome-file>default.htmwelcome-file>

        <welcome-file>default.jspwelcome-file>

    welcome-file-list>

web-app>

2Hibernate配置:

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>

    数据库驱动类名称 -->

        <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriverproperty>

    数据库用户名 -->

<property name="hibernate.connection.username">MYproperty>

        <property name="hibernate.default_schema">MYproperty>

    数据库用户密码 -->

        <property name="hibernate.connection.password">MYproperty>

    数据库连接字符串-->

        <property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:loonproperty>

        <property name="hibernate.dialect">org.hibernate.dialect.Oracle9Dialectproperty>

    控制台是否输出SQL语句 -->

        <property name="hibernate.show_sql">trueproperty>

        <mapping class="privilege.database.Level" />

    session-factory>

hibernate-configuration>

3Spring基本配置:配置文件应该在WEB-INF/spring/下面

xml version="1.0" encoding="UTF-8"?>

DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans default-autowire="autodetect">

    如果用的是XML配置文件,sessionFactory用这个配置 "org.springframework.orm.hibernate3.LocalSessionFactoryBean" -->

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

        <property name="configLocation">

            <value>classpath:hibernate.cfg.xmlvalue>

        property>

       

    bean>

   

    <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">

        <property name="sessionFactory" ref="sessionFactory" />

    bean>

<bean id="baseTransactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true">

        <property name="transactionManager" ref="transactionManager" />

        <property name="transactionAttributes">

            <props>

                <prop key="find*">PROPAGATION_REQUIRED,readOnlyprop>

                <prop key="persist*">PROPAGATION_REQUIRED,-Exceptionprop>

                <prop key="remove*">PROPAGATION_REQUIRED,-Exceptionprop>

               

            props>

        property>

    bean>

 

    <bean id="LevelService" parent="baseTransactionProxy">

        <property name="target">

            <bean class="privilege.service.LevelService">

                <property name="dao">

                    <bean class="privilege.dao.LevelDAO">

                        <property name="sessionFactory" ref="sessionFactory" />

                    bean>

                property>

            bean>

        property>

    bean>

    <bean id="LevelAction" class="privilege.action.LevelAction">

        <property name="levelService" ref="LevelService" />

    bean>

 beans>

4struts.xml文件的配置:

DOCTYPE struts PUBLIC  

        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"  

        "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

    <package name="privilege" extends="struts-default">

        <action name="LoadLevel" class="LevelAction" method="findLevelById">

            <result>/resource/json_struts2.jspresult>

        action>

        <action name="LevelAjaxJsonData" class="LevelAction" method="jsonExecute">

            <result>/resource/json_struts2.jspresult>

        action>

    package>

struts>

3、  建立的项目目录:

Root

/resource/ext2.0/  将下载的ext-2.0-beta1.zip文件解压到该目录

/WEB-INF/web.xml

/WEB-INF/lib

/WEB-INF/classes/struts.xml

/WEB-INF/spring/applicationContext.xml

4、  代码清单:

Level.java

 

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Id;

import javax.persistence.Table;

 

 

@Entity

@Table(name = "LOON_LEVEL")

public class Level implements java.io.Serializable {

    private Long levelid;

    private String levelname;

    private String description;

 

    public Level() {

    }

 

    public Level(Long levelid) {

       this.levelid = levelid;

    }

 

    public Level(Long levelid, String levelname, String description) {

       this.levelid = levelid;

       this.levelname = levelname;

       this.description = description;

    }

 

    @Id

    @Column(name = "LEVELID", unique = true, nullable = false, precision = 5, scale = 0)

    public Long getLevelid() {

       return this.levelid;

    }

 

    public void setLevelid(Long levelid) {

       this.levelid = levelid;

    }

 

    @Column(name = "LEVELNAME", length = 64)

    public String getLevelname() {

       return this.levelname;

    }

 

    public void setLevelname(String levelname) {

       this.levelname = levelname;

    }

 

    @Column(name = "DESCRIPTION", length = 256)

    public String getDescription() {

       return this.description;

    }

 

    public void setDescription(String description) {

       this.description = description;

    }

}

 

ILevelDAO.java

 

import java.util.List;

public interface ILevelDAO {

    public Level findLevelById(Long id);

    public List  findAllLevels();

    public void persistLevel(Level level);

    public void removeLevel(Level level);

    public void removeById(Long id);

}

 

LevelDAO.java

 

import java.util.List;

import org.hibernate.Session;

import org.springframework.orm.hibernate3.HibernateCallback;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class LevelDAO extends HibernateDaoSupport implements ILevelDAO {

    public LevelDAO() {

       super();

    }

    public Level findLevelById(Long id) {

       return (Level) getHibernateTemplate().get(Level.class, id);

    }

    public List findAllLevels() {

       return getHibernateTemplate().loadAll(Level.class);// .find("from Level o");//

    }

    public void persistLevel(Level level) {

       getHibernateTemplate().saveOrUpdate(level);

    }

    public void removeLevel(Level level) {

       getHibernateTemplate().delete(level);

    }

 

    public void removeById(final Long id) {

       this.getHibernateTemplate().execute(new HibernateCallback() {

           public Object doInHibernate(Session session) {

              session.createQuery("delete from Level o where o.levelid=" + id + "").executeUpdate();

              return 1;

           }

       });

    }

}

 

ILevelService.java

 

import java.util.List;

public interface ILevelService {

    public Level findLevelById(Long id) throws Exception;

    public List findAllLevels() throws Exception;

    public List findLevelsByExample(Level level) throws Exception;

    public void persistLevel(Level level) throws Exception;

    public void removeLevel(Level level) throws Exception;

public void removeLevelById(Long id) throws Exception;

}

 

LevelService.java

 

import java.util.List;

import privilege.dao.*;

import privilege.database.Level;

import org.springframework.context.ApplicationContext;

public class LevelService implements ILevelService {

    private ILevelDAO dao;

    private static final String SERVICE_BEAN_ID = "LevelService";

    public LevelService() {

       super();

    }

    public static ILevelService getInstance(ApplicationContext context) {

       return (ILevelService) context.getBean(SERVICE_BEAN_ID);

    }

    public Level findLevelById(Long id) throws Exception {

       try {

           return getDao().findLevelById(id);

       } catch (RuntimeException e) {

           throw new Exception("findLevelById failed with the id " + id + ": " + e.getMessage());

       }

    }

    public void persistLevel(Level level) throws Exception {

       try {

           getDao().persistLevel(level);

       } catch (RuntimeException e) {

           throw new Exception("persistLevel failed: " + e.getMessage());

       }

    }

    public void removeLevel(Level level) throws Exception {

       try {

           getDao().removeLevel(level);

       } catch (RuntimeException e) {

           throw new Exception("removeLevel failed: " + e.getMessage());

       }

    }

    public void removeLevelById(Long id) throws Exception {

       try {

           getDao().removeById(id);

       } catch (RuntimeException e) {

           throw new Exception("removeLevel failed: " + e.getMessage());

       }

    }

 

    public void setDao(ILevelDAO dao) {

       this.dao = dao;

    }

    public ILevelDAO getDao() {

       return this.dao;

    }

}

 

ExtJSONActionSuport.java

辅助类,继承了ActionSupport

import com.opensymphony.xwork2.ActionSupport;

 

public class ExtJSONActionSuport extends ActionSupport {

    private int totalCount = 0;// 总数

    private transient int start = 0;// 开始数

    private transient int limit = 0;// 限制数量

    private String jsonString = "";

 

    public String getJsonString() {

       return jsonString;

    }

 

    public void setJsonString(String jsonString) {

       this.jsonString = jsonString;

    }

 

    public String jsonExecute() throws Exception {

       return super.execute();

    }

 

     

 

    public int getTotalCount() {

       return totalCount;

    }

 

    public void setTotalCount(int totalCount) {

       this.totalCount = totalCount;

    }

 

    public int getStart() {

       return start;

    }

 

    public void setStart(int start) {

       this.start = start;

    }

 

    public int getLimit() {

       return limit;

    }

 

    public void setLimit(int limit) {

       this.limit = limit;

    }

}

 

 

LevelAction.java

 

import java.util.List;

import java.util.ArrayList;

import javax.servlet.http.HttpSession;

import org.apache.struts2.ServletActionContext;

import net.sf.json.JSONArray;

import privilege.database.Level;

import privilege.service.*;

import commons.utils.action.ExtJSONActionSuport;

 

public class LevelAction extends ExtJSONActionSuport {

    private static final long serialVersionUID = 1L;

    private Level level = null;

    private List levels = new ArrayList(0);

    private ILevelService levelService = null;

    private String delData;

 

    public String execute() {

       return this.SUCCESS;

    }

 

    @Override

    public String jsonExecute() throws Exception {

       if (this.getDelData() != null && !"".equals(this.getDelData())) {

           if (this.getDelData().indexOf(",") < 0) {

              this.levelService.removeLevelById(Long.parseLong(this.getDelData()));

               System.out.println("del_id:" + getDelData());

           } else {

              String id[] = this.getDelData().split(",");

              for (int i = 0; i < id.length; i++) {

                  System.out.println("del:" + id[i]);

                  this.levelService.removeLevelById(Long.parseLong(id[i]));

               }

           }

       }

       HttpSession session = ServletActionContext.getRequest().getSession();

       Object o = null;// session.getAttribute("Level_Data1");

       if (o == null) {

           try {

              this.levels = this.getLevelService().findAllLevels();

              session.setAttribute("Level_Data1", this.levels);

              System.out.println("query database");

           } catch (Exception e) {

              e.printStackTrace();

           }

       } else {

           this.setLevels(((List) o));

       }

       this.setTotalCount(this.levels.size());

       JSONArray array = JSONArray.fromObject(this.levels);

       // System.out.println(this.getStart() + "---" + this.getLimit());

       this.setJsonString("{success:true,totalCount : " + this.getTotalCount() + ", list:" + array.toString() + "}");

       // System.out.println(this.getJsonString());

       return super.jsonExecute();

    }

 

    /**

     * Find an entity by its id (primary key).

     *

     * @param id

     * @return The found entity instance or null if the entity does not exist.

     */

    public String findLevelById(Long id) {

       try {

           this.level = this.getLevelService().findLevelById(id);

       } catch (Exception e) {

           e.printStackTrace();

       }

       JSONArray array = JSONArray.fromObject(this.levels);

       this.setJsonString(array.toString());

       return SUCCESS;

    }

 

    public String findLevelById() {

       System.out.println(this.level.getLevelid());

       try {

           this.level = this.getLevelService().findLevelById(this.level.getLevelid());

       } catch (Exception e) {

           e.printStackTrace();

       }

       JSONArray array = JSONArray.fromObject(this.level);

       this.setJsonString(array.toString());

       this.setJsonString("{success:true,totalCount:1,list:" + array.toString() + "}");

       System.out.println(array.toString());

       return SUCCESS;

    }

 

    /**

     * @return Return all persistent instances of the Level entity.

     */

    public String getAllLevels() {

       try {

           this.levels = this.getLevelService().findAllLevels();

       } catch (Exception e) {

           e.printStackTrace();

       }

       return SUCCESS;

    }

 

 

    /**

     * Make the given instance managed and persistent.

     *

     * @return

     */

    public String persistLevel() {

       System.out.println(this.level.getLevelid() + "---" + this.level.getLevelname() + "---"

              + this.level.getDescription());

       this.setJsonString("{success:true}");

       try {

           this.getLevelService().persistLevel(this.getLevel());

       } catch (Exception e) {

           e.printStackTrace();

       }

       return SUCCESS;

    }

 

    /**

     * Remove the given persistent instance.

     *

     * @return

     */

    public String removeLevel() {

       try {

           this.getLevelService().removeLevel(this.getLevel());

       } catch (Exception e) {

           e.printStackTrace();

       }

       return SUCCESS;

    }

 

    /**

     * Remove an entity by its id (primary key). *

     *

     * @return

     */

    public String removeLevelById(Long id) {

       try {

           this.getLevelService().removeLevelById(id);

       } catch (Exception e) {

           e.printStackTrace();

       }

       return SUCCESS;

    }

 

    public Level getLevel() {

       return level;

    }

 

    public void setLevel(Level level) {

       this.level = level;

    }

 

    public List getLevels() {

       return levels;

    }

 

    public void setLevels(List levels) {

       this.levels = levels;

    }

 

    public ILevelService getLevelService() {

       return levelService;

    }

 

    public void setLevelService(ILevelService levelService) {

       this.levelService = levelService;

    }

 

    public String getDelData() {

       return delData;

    }

 

    public void setDelData(String delData) {

       this.delData = delData;

    }

}

配置spring,添加:

<bean id="LevelService" parent="baseTransactionProxy">

       <property name="target">

           <bean class="privilege.service.LevelService">

              <property name="dao">

                  <bean class="privilege.dao.LevelDAO">

                     <property name="sessionFactory" ref="sessionFactory" />

                  bean>

              property>

           bean>

       property>

    bean>

    <bean id="LevelAction" class="privilege.action.LevelAction">

       <property name="levelService" ref="LevelService" />

    bean>

配置struts.xml:

添加操作配置:

<action name="AddLevel" class="LevelAction" method="persistLevel">

    <result>/resource/json_struts2.jspresult>

action>

修改时载入数据操作配置:

<action name="LoadLevel" class="LevelAction" method="findLevelById">

    <result>/resource/json_struts2.jspresult>

action>

列表查询和删除数据时操作配置:

<action name="LevelAjaxJsonData" class="LevelAction" method="jsonExecute">

    <result>/resource/json_struts2.jspresult>

action>

 

 json_struts2.jsp :

这个页面是一个公用的页面,服务器段向客户端传输时用于JSON字符串的输出,特别注意的是:

标签的escape属性一定要是false,默认是true,不然输出的JSON字符串被转码。

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags"%>

<s:property value="jsonString" escape="false" />

 

Level.jsp:

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<%@ taglib prefix="s" uri="/struts-tags"%>

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=UTF-8">

<title>页面title>

导入所需要的javascript类库和样式表:

<link rel="stylesheet" type="text/css" href="/my/resource/ext2.0/resources/css/ext-all.css" />

<link rel="stylesheet" type="text/css" href="/my/resource/ext2.0/init.css" />

<script src="/my/resource/ext2.0/adapter/ext/ext-base.js" type="text/javascript">script>

<script src="/my/resource/ext2.0/ext-core.js" type="text/javascript">script>

<script src="/my/resource/ext2.0/ext-all.js"  type="text/javascript">script>

Init.jsp是自定义的javascript文件,这里有一些需要动态处理的内容,所以以jsp后缀名的方式导入,这个文件的内容可以参考Extjs解压后目录中examples/examples.js文件:

<script src="/my/resource/ext2.0/init.jsp"  type="text/javascript">script>

<script src="/my/resource/ext2.0/source/locale/ext-lang-zh_CN.js"  type="text/javascript">script>

Level.js是整个界面所写的js

<SCRIPT type="text/javascript" src="Level.js">SCRIPT>

<SCRIPT type="text/javascript">

Ext.BLANK_IMAGE_URL = /my/resource/ext2.0/resources/images/default/s.gif';

SCRIPT>

 

<STYLE type="text/css">

.ss {

    text-align: left;;

}

.icon-grid {

    background-image: url(grid.png) !important;

}

.add {

    background-image: url(new.png) !important;

}

.edit {

    background-image: url(edit.png) !important;

}

.remove {

    background-image: url(del.png) !important;

}

STYLE>

head>

<body class="x-vista">

<div id="topic-grid">div>

 

 

<div id="topic-win" class="x-hidden">

<div class="x-window-header">Hello Dialogdiv>

<div id="topic-tabs">div>

div>

body>

html>

 

Level.js文件:

myinit();//初始化

Ext.onReady(function() {

    Ext.QuickTips.init();

    var newFormWin;

    var form1;

//定义一个JsonReader对象,用于表格列表数据显示,即grid对象

    var _jsonReader = new Ext.data.JsonReader( {

        root : 'list',

        totalProperty : 'totalCount',

        id : 'levelid',

        successProperty : '@success'

    }, [ {

        name : 'levelid',

        mapping : 'levelid',

        type : 'int'

    }, {

        name : 'levelname',

        mapping : 'levelname'

    }, {

        name : 'description',

        mapping : 'description'

    }]);

    // Store对象,注意proxy配置参数,如果url : 'LevelAjaxJsonData.action'与程序在同一应用下面,就用new Ext.data.HttpProxy,如果不在同一应用中要用Ext.data.ScriptTagProxy对象

        var ds = new Ext.data.Store( {

            proxy : new Ext.data.HttpProxy( {

                url : 'LevelAjaxJsonData.action'

            }),

            //

            reader : _jsonReader

        });

        ds.setDefaultSort('levelid', 'desc');//设置默认的排序字段

 

        // ColumnModel对象,用于grid对象中的列格式化配置

        var cm = new Ext.grid.ColumnModel([new Ext.grid.RowNumberer(), {

            id : 'levelid',

            header : '序号',

            dataIndex : 'levelid',

            width : 40

        }, {

            header : "级别名称",

            dataIndex : 'levelname',

            width : 50,

            sortable : true,

            locked : false

        }, {

            header : "描述",

            dataIndex : 'description',

            width : 100

        }]);

        // by default columns are sortable

        cm.defaultSortable = true;

// GridPanel对象

        var grid = new Ext.grid.GridPanel( {

            // var grid = new Ext.grid.EditorGridPanel( {

            collapsible : true,// 是否可以展开

            animCollapse : false,// 展开时是否有动画效果

            title : '级别管理',

            iconCls : 'icon-grid',

            store : ds,

            cm : cm,

            renderTo : 'topic-grid',

            viewConfig : {

                forceFit : true

            },

            /*

             * // 添加内陷的按钮 buttons : [ { text : '保存' }, { text : '取消' }],

             * buttonAlign : 'center',// 按钮对齐

             *

             */

            // 添加分页工具栏

            bbar : new Ext.PagingToolbar( {

                pageSize : 30,

                store : ds,

                displayInfo : true,

                displayMsg : '显示 {0}-{1} / {2} ',

                emptyMsg : "无数据。",

                items : ['-', {

                    pressed : true,

                    enableToggle : true,

                    text : '按钮',

                    cls : 'x-btn-text-icon details',

                    toggleHandler : ptb_bt1

                }]

            }),

            // 添加内陷的工具条

            tbar : [ {

                id : 'New1',

                text : ' 新建  ',

                tooltip : '新建一个表单',

                iconCls : 'add',

                handler : function() {

                    ptb_bt1();

                }

            }, '-', {

                text : '修改',

                tooltip : '修改',

                iconCls : 'edit',

                handler : function() {

                    ptb_bt2();

                }

            }, '-', {

                text : '删除',

                tooltip : '删除被选择的内容',

                iconCls : 'remove',

                handler : function() {

                    ptb_bt3();

                }

            }],

            width : 700,

            height : 400,

            frame : true,

            loadMask : true,// 载入遮罩动画

            autoShow : true

        });

//数据载入

        ds.load( {

            params : {

                start : 0,//开始数

                limit : 30,//每次载入数量,服务器段就根据这两个参数来处理数据分页

                forumId : 4

            }

        });

        grid.render();

//添加行双击事件,双击是可以打开修改窗口

        grid.on("rowdblclick", function(grid) {

            loadFormData(grid);

        });

        // 载入被选择的数据行的表单数据

        var loadFormData = function(grid) {

            var _record = grid.getSelectionModel().getSelected();

            if (!_record) {//这里判断是否有行已经被选择

                Ext.example.msg('修改操作', '请选择要修改的一项!');

            } else {

                myFormWin();

                form1.form.load( {

                    url : 'LoadLevel.action?level.levelid='

                            + _record.get('levelid'),

                    waitMsg : '正在载入数据...',

 

                    failure : function() {

                        Ext.example.msg('编辑', '载入失败');

                    },

                    success : function() {

                        Ext.example.msg('编辑', '载入成功!');

                    }

                });

            }

        }

        // 分页工具栏按钮--新建事件

        var ptb_bt1 = function() {

            myFormWin();

        };

        // 修改操作事件

        var ptb_bt2 = function() {

            loadFormData(grid);

        };

        // 删除事件

        var ptb_bt3 = function() {

            var _record = grid.getSelectionModel().getSelected();

            if (_record) {//判断是否有行被选择

                Ext.MessageBox.confirm('确认删除', '你确认要删除这条数据吗?', function(btn) {

                    if (btn == "yes") {

                        var m = grid.getSelections();//所有被选择的行

                        var jsonData = "";//

                        for (var i = 0, len = m.length;i < len; i++) {

                            var ss = m[i].get("levelid");

                            if (i == 0) {

                                jsonData = jsonData + ss;

                            } else {

                                jsonData = jsonData + "," + ss;

                            }

                            ds.remove(m[i]);

                        }

                        ds.load( {

                            params : {

                                start : 0,

                                limit : 30,

                                delData : jsonData//这里是向服务器段发送的数据信息,一般采用JSON协议,这儿直接采用,只发送用逗号分割的ID号序列, 以方便

                            }

                        });

 

                        // Ext.example.msg('---删除操作---', '你删除的数据是');

                    }

                });

            } else {

                Ext.example.msg('删除操作', '请选择要删除的数据项!');

            }

        };

 

        // form_win定义一个Window对象,用于新建和修改时的弹出窗口。

        var myFormWin = function() {

            // create the window on the first click and reuse on subsequent

            // clicks

            if (!newFormWin) {

                newFormWin = new Ext.Window( {

                    el : 'topic-win',

                    layout : 'fit',

                    width : 400,

                    height : 300,

                    closeAction : 'hide',

                    plain : true,

                    title : '窗口',

                    items : form1,

                    reader : _jsonReader

                });

            }

            newFormWin.show('New1');

        }

//用窗体FormJsonReader对象,修改时数据载入解析

        var _jsonFormReader = new Ext.data.JsonReader( {

            root : 'list',

            totalProperty : 'totalCount',

            id : 'levelid',

            successProperty : '@success'

        }, [ {

            name : 'level.levelid',

            mapping : 'levelid',

            type : 'int'

        }, {

            name : 'level.levelname',

            mapping : 'levelname'

        }, {

            name : 'level.description',

            mapping : 'description'

        }]);

 

        // 窗体

        form1 = new Ext.FormPanel( {

            // collapsible : true,// 是否可以展开

            labelWidth : 75, // label settings here cascade unless overridden

            url : 'AddLevel.action',

            frame : true,

            title : '添加级别',

            bodyStyle : 'padding:5px 5px 0',

            width : 350,

            waitMsgTarget : true,

            reader : _jsonFormReader,

            defaults : {

                width : 230

            },

            defaultType : 'textfield',

            items : [ {

                fieldLabel : '级别ID',

                name : 'level.levelid',

                allowBlank : false

            }, {

                fieldLabel : '级别名称',

                name : 'level.levelname',

                allowBlank : false

            }, new Ext.form.TextArea( {

                fieldLabel : '描述',

                name : 'level.description',

                growMin : 234

            })],

 

            buttons : [ {

                text : '保存',

                disabled : false,

                handler : function() {

                    if (form1.form.isValid()) {

                        form1.form.submit( {

                            url : 'AddLevel.action',

                            success : function(from, action) {

                                Ext.example.msg('保存成功', '添加级别成功!');

                                ds.load( {

                                    params : {

                                        start : 0,

                                        limit : 30,

                                        forumId : 4

                                    }

                                });

                            },

                            failure : function(form, action) {

                                Ext.example.msg('保存失败', '添加级别失败!');

                            },

                            waitMsg : '正在保存数据,稍后...'

                        });

                        dialog.hide();

                    } else {

                        Ext.Msg.alert('信息', '请填写完成再提交!');

                    }

                }

            }, {

                text : '取消',

                handler : function() {

                    newFormWin.hide();

                }

            }]

        });

    });

5、  运行时的一些图(Firefox 2.0):

数据列表:

Hibernate+Spring+Struts2+ExtJS开发CRUD功能_第2张图片

新建:

Hibernate+Spring+Struts2+ExtJS开发CRUD功能_第3张图片

修改:

未选择数据行

Hibernate+Spring+Struts2+ExtJS开发CRUD功能_第4张图片

选择数据行后,单击修改按钮(双击数据行可直接修改)

Hibernate+Spring+Struts2+ExtJS开发CRUD功能_第5张图片

删除数据:

删除时确认

Hibernate+Spring+Struts2+ExtJS开发CRUD功能_第6张图片

确认后删除数据:

 Hibernate+Spring+Struts2+ExtJS开发CRUD功能_第7张图片

 源代码下载:

下载 (不包括类库)下载后将后缀名修改为zip即可

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