SSH物流开发系统设计：区域和分区的增删改查

ゞ浴缸里的玫瑰 2022-06-14 02:00 221阅读 0赞

## 一、区域数据操作 ##

### 批量导入功能 ###

1、前端页面逻辑  
首先ajax不能做文件上传。需要用到jquery插件。  
第一步：在jsp页面中引入插件的js文件

第二步：在页面中提供一个元素以供标示。

{
            id : 'button-import',
            text : '导入',
            iconCls : 'icon-redo'
        }

第三步：调用插件提供的upload方法，动态修改页面html代码

//调用OCupload插件的方法
            $("#button-import").upload({
                    action: '${pageContext.request.contextPath}/regionAction_importXls.action',  
                    name: 'myFile',
                    onComplete: function(data) {
        
                        if(data == '1'){
                            //上传成功
                            $.messager.alert("提示信息","区域数据导入成功！","info");
                        }else{
                            //失败
                            $.messager.alert("提示信息","区域数据导入失败！","warning");
                        }
                    }
                });

2、后台系统逻辑  
pojo基础类：Region

package com.crm.bos.domain;
    
    import java.util.HashSet;
    import java.util.Set;
    /**
     * 区域实体
     *
     */
    
    public class Region implements java.io.Serializable {
        
    
        // Fields
    
        private String id;
        private String province;
        private String city;
        private String district;
        private String postcode;
        private String shortcode;
        private String citycode;
    
        public String getName(){
            return province+city + district;
        }
    
        private Set subareas = new HashSet(0);
    
        // Constructors
    
        /** default constructor */
        public Region() {
        }
    
        /** minimal constructor */
        public Region(String id) {
            this.id = id;
        }
    
        /** full constructor */
        public Region(String id, String province, String city, String district,
                String postcode, String shortcode, String citycode, Set subareas) {
            this.id = id;
            this.province = province;
            this.city = city;
            this.district = district;
            this.postcode = postcode;
            this.shortcode = shortcode;
            this.citycode = citycode;
            this.subareas = subareas;
        }
    
        // Property accessors
    
        public String getId() {
            return this.id;
        }
    
        public void setId(String id) {
            this.id = id;
        }
    
        public String getProvince() {
            return this.province;
        }
    
        public void setProvince(String province) {
            this.province = province;
        }
    
        public String getCity() {
            return this.city;
        }
    
        public void setCity(String city) {
            this.city = city;
        }
    
        public String getDistrict() {
            return this.district;
        }
    
        public void setDistrict(String district) {
            this.district = district;
        }
    
        public String getPostcode() {
            return this.postcode;
        }
    
        public void setPostcode(String postcode) {
            this.postcode = postcode;
        }
    
        public String getShortcode() {
            return this.shortcode;
        }
    
        public void setShortcode(String shortcode) {
            this.shortcode = shortcode;
        }
    
        public String getCitycode() {
            return this.citycode;
        }
    
        public void setCitycode(String citycode) {
            this.citycode = citycode;
        }
    
        public Set getSubareas() {
            return this.subareas;
        }
    
        public void setSubareas(Set subareas) {
            this.subareas = subareas;
        }
    
    }

相应的Hibernate映射文件

<?xml version="1.0" encoding="utf-8"?>
    <!DOCTYPE hibernate-mapping PUBLIC 
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
    <hibernate-mapping>
        <class name="com.crm.bos.domain.Region" table="bc_region" catalog="bos19">
            <id name="id" type="java.lang.String">
                <column name="id" length="32" />
                <generator class="assigned" />
            </id>
            <property name="province" type="java.lang.String">
                <column name="province" length="50" />
            </property>
            <property name="city" type="java.lang.String">
                <column name="city" length="50" />
            </property>
            <property name="district" type="java.lang.String">
                <column name="district" length="50" />
            </property>
            <property name="postcode" type="java.lang.String">
                <column name="postcode" length="50" />
            </property>
            <property name="shortcode" type="java.lang.String">
                <column name="shortcode" length="30" />
            </property>
            <property name="citycode" type="java.lang.String">
                <column name="citycode" length="30" />
            </property>
            <set name="subareas" inverse="true">
                <key>
                    <column name="region_id" length="32" />
                </key>
                <one-to-many class="com.crm.bos.domain.Subarea" />
            </set>
        </class>
    </hibernate-mapping>

action处理类：

@Controller
    @Scope("prototype")
    public class RegionAction extends BaseAction<Region> {
        
        // 接收上传的文件
        private File myFile;
    
        public void setMyFile(File myFile) {
            this.myFile = myFile;
        }
    
        /**
         * 批量导入
         * 
         * @throws IOException
         * @throws FileNotFoundException
         */
        public String importXls() throws Exception {
            String flag = "1";
            // 使用ＰＯＩ解析Ｅｘｃｅｌ文件
            try {
                HSSFWorkbook workbook = new HSSFWorkbook(
                        new FileInputStream(myFile));
                // 获得第一个sheet页
                HSSFSheet sheet = workbook.getSheetAt(0);
                List<Region> list = new ArrayList<Region>();
                for (Row row : sheet) {
                    int rowNum = row.getRowNum();
                    if (rowNum == 0) {
                        // 第一行，标题行，忽略
                        continue;
                    }
                    String id = row.getCell(0).getStringCellValue();
                    String province = row.getCell(1).getStringCellValue();
                    String city = row.getCell(2).getStringCellValue();
                    String district = row.getCell(3).getStringCellValue();
                    String postcode = String.valueOf((long) row.getCell(4)
                            .getNumericCellValue());
                    Region region = new Region(id, province, city, district,
                            postcode, null, null, null);
                    city = city.substring(0, city.length() - 1);
                    String[] stringToPinyin = PinYin4jUtils.stringToPinyin(city);
                    String citycode = StringUtils.join(stringToPinyin, "");
    
                    // 简码---->>HBSJZCA
                    province = province.substring(0, province.length() - 1);
                    district = district.substring(0, district.length() - 1);
                    String info = province + city + district;// 河北石家庄长安
                    String[] headByString = PinYin4jUtils.getHeadByString(info);
                    String shortcode = StringUtils.join(headByString, "");
    
                    region.setCitycode(citycode);
                    region.setShortcode(shortcode);
                    list.add(region);
                }
                regionService.saveBatch(list);
            } catch (Exception e) {
                e.printStackTrace();
                flag = "0";
            }
            ServletActionContext.getResponse().setContentType(
                    "text/html;charset=UTF-8");
            ServletActionContext.getResponse().getWriter().print(flag);
            return NONE;
        }

这里使用Pinyin4J生成简码和城市编码

public class PinYin4jUtils {
        
        /**
         * 将字符串转换成拼音数组
         * 
         * @param src
         * @return
         */
        public static String[] stringToPinyin(String src) {
            return stringToPinyin(src, false, null);
        }
    
        /**
         * 将字符串转换成拼音数组
         * 
         * @param src
         * @return
         */
        public static String[] stringToPinyin(String src, String separator) {
    
            return stringToPinyin(src, true, separator);
        }
    
        /**
         * 将字符串转换成拼音数组
         * 
         * @param src
         * @param isPolyphone
         *            是否查出多音字的所有拼音
         * @param separator
         *            多音字拼音之间的分隔符
         * @return
         */
        public static String[] stringToPinyin(String src, boolean isPolyphone,
                String separator) {
            // 判断字符串是否为空
            if ("".equals(src) || null == src) {
                return null;
            }
            char[] srcChar = src.toCharArray();
            int srcCount = srcChar.length;
            String[] srcStr = new String[srcCount];
    
            for (int i = 0; i < srcCount; i++) {
                srcStr[i] = charToPinyin(srcChar[i], isPolyphone, separator);
            }
            return srcStr;
        }
    
        /**
         * 将单个字符转换成拼音
         * 
         * @param src
         * @return
         */
        public static String charToPinyin(char src, boolean isPolyphone,
                String separator) {
            // 创建汉语拼音处理类
            HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
            // 输出设置，大小写，音标方式
            defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
            defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
    
            StringBuffer tempPinying = new StringBuffer();
    
            // 如果是中文
            if (src > 128) {
                try {
                    // 转换得出结果
                    String[] strs = PinyinHelper.toHanyuPinyinStringArray(src,
                            defaultFormat);
    
                    // 是否查出多音字，默认是查出多音字的第一个字符
                    if (isPolyphone && null != separator) {
                        for (int i = 0; i < strs.length; i++) {
                            tempPinying.append(strs[i]);
                            if (strs.length != (i + 1)) {
                                // 多音字之间用特殊符号间隔起来
                                tempPinying.append(separator);
                            }
                        }
                    } else {
                        tempPinying.append(strs[0]);
                    }
    
                } catch (BadHanyuPinyinOutputFormatCombination e) {
                    e.printStackTrace();
                }
            } else {
                tempPinying.append(src);
            }
    
            return tempPinying.toString();
    
        }
    
        public static String hanziToPinyin(String hanzi) {
            return hanziToPinyin(hanzi, " ");
        }
    
        /**
         * 将汉字转换成拼音
         * 
         * @param hanzi
         * @param separator
         * @return
         */
        public static String hanziToPinyin(String hanzi, String separator) {
    
            // 创建汉语拼音处理类
            HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
            // 输出设置，大小写，音标方式
            defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
            defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
    
            String pinyingStr = "";
            try {
                pinyingStr = PinyinHelper.toHanyuPinyinString(hanzi, defaultFormat,
                        separator);
            } catch (BadHanyuPinyinOutputFormatCombination e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            return pinyingStr;
        }
    
        /**
         * 将字符串数组转换成字符串
         * 
         * @param str
         * @param separator
         *            各个字符串之间的分隔符
         * @return
         */
        public static String stringArrayToString(String[] str, String separator) {
            StringBuffer sb = new StringBuffer();
            for (int i = 0; i < str.length; i++) {
                sb.append(str[i]);
                if (str.length != (i + 1)) {
                    sb.append(separator);
                }
            }
            return sb.toString();
        }
    
        /**
         * 简单的将各个字符数组之间连接起来
         * 
         * @param str
         * @return
         */
        public static String stringArrayToString(String[] str) {
            return stringArrayToString(str, "");
        }
    
        /**
         * 将字符数组转换成字符串
         * 
         * @param str
         * @param separator
         *            各个字符串之间的分隔符
         * @return
         */
        public static String charArrayToString(char[] ch, String separator) {
            StringBuffer sb = new StringBuffer();
            for (int i = 0; i < ch.length; i++) {
                sb.append(ch[i]);
                if (ch.length != (i + 1)) {
                    sb.append(separator);
                }
            }
            return sb.toString();
        }
    
        /**
         * 将字符数组转换成字符串
         * 
         * @param str
         * @return
         */
        public static String charArrayToString(char[] ch) {
            return charArrayToString(ch, " ");
        }
    
        /**
         * 取汉字的首字母
         * 
         * @param src
         * @param isCapital
         *            是否是大写
         * @return
         */
        public static char[] getHeadByChar(char src, boolean isCapital) {
            // 如果不是汉字直接返回
            if (src <= 128) {
                return new char[] { src };
            }
            // 获取所有的拼音
            String[] pinyingStr = PinyinHelper.toHanyuPinyinStringArray(src);
    
            // 创建返回对象
            int polyphoneSize = pinyingStr.length;
            char[] headChars = new char[polyphoneSize];
            int i = 0;
            // 截取首字符
            for (String s : pinyingStr) {
                char headChar = s.charAt(0);
                // 首字母是否大写，默认是小写
                if (isCapital) {
                    headChars[i] = Character.toUpperCase(headChar);
                } else {
                    headChars[i] = headChar;
                }
                i++;
            }
    
            return headChars;
        }
    
        /**
         * 取汉字的首字母(默认是大写)
         * 
         * @param src
         * @return
         */
        public static char[] getHeadByChar(char src) {
            return getHeadByChar(src, true);
        }
    
        /**
         * 查找字符串首字母
         * 
         * @param src
         * @return
         */
        public static String[] getHeadByString(String src) {
            return getHeadByString(src, true);
        }
    
        /**
         * 查找字符串首字母
         * 
         * @param src
         * @param isCapital
         *            是否大写
         * @return
         */
        public static String[] getHeadByString(String src, boolean isCapital) {
            return getHeadByString(src, isCapital, null);
        }
    
        /**
         * 查找字符串首字母
         * 
         * @param src
         * @param isCapital
         *            是否大写
         * @param separator
         *            分隔符
         * @return
         */
        public static String[] getHeadByString(String src, boolean isCapital,
                String separator) {
            char[] chars = src.toCharArray();
            String[] headString = new String[chars.length];
            int i = 0;
            for (char ch : chars) {
    
                char[] chs = getHeadByChar(ch, isCapital);
                StringBuffer sb = new StringBuffer();
                if (null != separator) {
                    int j = 1;
    
                    for (char ch1 : chs) {
                        sb.append(ch1);
                        if (j != chs.length) {
                            sb.append(separator);
                        }
                        j++;
                    }
                } else {
                    sb.append(chs[0]);
                }
                headString[i] = sb.toString();
                i++;
            }
            return headString;
        }
    
        public static void main(String[] args) {
            // pin4j 简码 和 城市编码 
            String s1 = "中华人民共和国"; 
            String[] headArray = getHeadByString(s1); // 获得每个汉字拼音首字母
            System.out.println(Arrays.toString(headArray));
    
            String s2 ="长城" ; 
            System.out.println(Arrays.toString(stringToPinyin(s2,true,",")));
    
            String s3 ="长";
            System.out.println(Arrays.toString(stringToPinyin(s3,true,",")));
        }
    }

service层代码如下：

@Service
    @Transactional
    public class RegionServiceImpl implements IRegionService{
        
        @Resource
        private IRegionDao regionDao;
    
        public void saveBatch(List<Region> list) {
            for (Region region : list) {
                regionDao.saveOrUpdate(region);
            }
        }

### 双击编辑 ###

1、前端逻辑

function doDblClickRow(rowIndex, rowData){
        
            //rowIndex是选中的行号索引（从0开始），rowData是当前行的数据，json格式
            //弹出修改窗口
            $('#addRegionWindow').window("open");
            $("#addRegionForm").form("load",rowData);//载入原有的表单数据
        }

2、后台逻辑  
action类：

//添加和修改功能
        public String add(){
            regionService.save(model);
            return "list";
        }

service层：

public void save(Region model) {
            regionDao.saveOrUpdate(model);
        }

### 批量删除 ###

1、前端逻辑

2、后台逻辑  
action类：

// 批量作废
        private String ids;
    
        public String delete() {
            regionService.deleteBatch(ids);
            System.out.println();
            return "list";
        }
    
        public void setIds(String ids) {
            this.ids = ids;
        }

service层：

public void deleteBatch(String ids) {
            String[] sids = ids.split(",");
            Region region=null;
            for (String id : sids) {
                region=new Region(id);
                regionDao.delete(region);
            }
        }

## 二、重构分页查询代码 ##

1、在BaseAction中抽取PageBean对象和条件查询对象

protected PageBean pageBean = new PageBean();
        DetachedCriteria detachedCriteria = null;//条件查询对象
        protected int page;// 分页参数
        protected int rows;

2、在BaseAction中提供setPage和setRows方法

public void setPage(int page) {
            pageBean.setCurrentPage(page);
        }
    
        public void setRows(int rows) {
            pageBean.setPageSize(rows);
        }

3、在BaseAction的构造方法中创建条件查询对象，并注入给PageBean对象

public BaseAction() {
            ParameterizedType genericSuperclass = null;
            Type genericSuperclass2 = this.getClass().getGenericSuperclass();
            if(genericSuperclass2 instanceof ParameterizedType){
                genericSuperclass=(ParameterizedType) genericSuperclass2;
            }else {
       //此时this为shiro的代理对象
                genericSuperclass=(ParameterizedType) this.getClass().getSuperclass().getGenericSuperclass();
            }
            Type[] actualTypeArguments = genericSuperclass.getActualTypeArguments();
            Class<T> entityClass = (Class<T>) actualTypeArguments[0];
            detachedCriteria = DetachedCriteria.forClass(entityClass);
            pageBean.setDetachedCriteria(detachedCriteria);
            try {
                model = entityClass.newInstance();
            } catch (InstantiationException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }

4、在BaseAction中抽取将PageBean对象转为json的方法

// 将pageBean对象转为json
        public void writePageBean2Json(PageBean pageBean, String[] excludes) {
            JsonConfig jsonConfig = new JsonConfig();
            jsonConfig.setExcludes(excludes);
            JSONObject jsonObject = JSONObject.fromObject(pageBean, jsonConfig);
            String json = jsonObject.toString();
            ServletActionContext.getResponse().setContentType(
                    "text/json;charset=UTF-8");
            try {
                ServletActionContext.getResponse().getWriter().print(json);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

## 三、添加分区 ##

1、前端页面逻辑

<div class="easyui-window" title="分区添加修改" id="addSubareaWindow" collapsible="false" minimizable="false" maximizable="false" style="top:20px;left:200px">
            <div style="height:31px;overflow:hidden;" split="false" border="false" >
                <div class="datagrid-toolbar">
                    <a id="save" icon="icon-save" href="#" class="easyui-linkbutton" plain="true" >保存</a>
                    <script type="text/javascript">
                        $(function(){
         
                            $("#save").click(function(){
         
                                var v = $("#addSubareaForm").form("validate");
                                if(v){
                                    $("#addSubareaForm").submit();
                                }
                            });
                        });
                    </script>
                </div>
            </div>
    
            <div style="overflow:auto;padding:5px;" border="false">
                <form id="addSubareaForm" action="${pageContext.request.contextPath }/subareaAction_add.action" method="post">
                    <table class="table-edit" width="80%" align="center">
                        <tr class="title">
                            <td colspan="2">分区信息</td>
                        </tr>
                        <tr>
                            <td>选择区域</td>
                            <td>
                                <input class="easyui-combobox" name="region.id"  
                                    data-options="mode:'remote',valueField:'id',textField:'name',url:'${pageContext.request.contextPath }/regionAction_listajax.action'" />  
                            </td>
                        </tr>
                        <tr>
                            <td>关键字</td>
                            <td><input type="text" name="addresskey" class="easyui-validatebox" required="true"/></td>
                        </tr>
                        <tr>
                            <td>起始号</td>
                            <td><input type="text" name="startnum" class="easyui-validatebox" required="true"/></td>
                        </tr>
                        <tr>
                            <td>终止号</td>
                            <td><input type="text" name="endnum" class="easyui-validatebox" required="true"/></td>
                        </tr>
                        <tr>
                            <td>单双号</td>
                            <td>
                                <select class="easyui-combobox" name="single" style="width:150px;">  
                                    <option value="0">单双号</option>  
                                    <option value="1">单号</option>  
                                    <option value="2">双号</option>  
                                </select> 
                            </td>
                        </tr>
                        <tr>
                            <td>位置信息</td>
                            <td><input type="text" name="position" class="easyui-validatebox" required="true" style="width:250px;"/></td>
                        </tr>
                    </table>
                </form>
            </div>
        </div>

2、在RegionAction中提供listajax方法，查询所有的区域数据，返回json数据。  
基础pojo类如下：

package com.crm.bos.domain;
    /**
     * 分区实体
     *
     */
    public class Subarea implements java.io.Serializable {
        
    
        // Fields
    
        private String id;
        private Decidedzone decidedzone;
        private Region region;
        private String addresskey;
        private String startnum;
        private String endnum;
        private String single;
        private String position;
    
        public String getSubareaid(){
            return id;
        }
        // Constructors
    
        /** default constructor */
        public Subarea() {
        }
    
        /** minimal constructor */
        public Subarea(String id) {
            this.id = id;
        }
    
        /** full constructor */
        public Subarea(String id, Decidedzone decidedzone, Region region,
                String addresskey, String startnum, String endnum, String single,
                String position) {
            this.id = id;
            this.decidedzone = decidedzone;
            this.region = region;
            this.addresskey = addresskey;
            this.startnum = startnum;
            this.endnum = endnum;
            this.single = single;
            this.position = position;
        }
    
        // Property accessors
    
        public String getId() {
            return this.id;
        }
    
        public void setId(String id) {
            this.id = id;
        }
    
        public Decidedzone getDecidedzone() {
            return this.decidedzone;
        }
    
        public void setDecidedzone(Decidedzone decidedzone) {
            this.decidedzone = decidedzone;
        }
    
        public Region getRegion() {
            return this.region;
        }
    
        public void setRegion(Region region) {
            this.region = region;
        }
    
        public String getAddresskey() {
            return this.addresskey;
        }
    
        public void setAddresskey(String addresskey) {
            this.addresskey = addresskey;
        }
    
        public String getStartnum() {
            return this.startnum;
        }
    
        public void setStartnum(String startnum) {
            this.startnum = startnum;
        }
    
        public String getEndnum() {
            return this.endnum;
        }
    
        public void setEndnum(String endnum) {
            this.endnum = endnum;
        }
    
        public String getSingle() {
            return this.single;
        }
    
        public void setSingle(String single) {
            this.single = single;
        }
    
        public String getPosition() {
            return this.position;
        }
    
        public void setPosition(String position) {
            this.position = position;
        }
    
    }

对应的Hibernate映射文件如下：

<?xml version="1.0" encoding="utf-8"?>
    <!DOCTYPE hibernate-mapping PUBLIC 
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
    <hibernate-mapping>
        <class name="com.crm.bos.domain.Subarea" table="bc_subarea" catalog="bos19">
            <id name="id" type="java.lang.String">
                <column name="id" length="32" />
                <generator class="uuid" />
            </id>
            <many-to-one name="decidedzone" class="com.crm.bos.domain.Decidedzone" fetch="select">
                <column name="decidedzone_id" length="32" />
            </many-to-one>
            <many-to-one lazy="false" name="region" class="com.crm.bos.domain.Region" fetch="select">
                <column name="region_id" length="32" />
            </many-to-one>
            <property name="addresskey" type="java.lang.String">
                <column name="addresskey" length="100" />
            </property>
            <property name="startnum" type="java.lang.String">
                <column name="startnum" length="30" />
            </property>
            <property name="endnum" type="java.lang.String">
                <column name="endnum" length="30" />
            </property>
            <property name="single" type="java.lang.String">
                <column name="single" length="1" />
            </property>
            <property name="position" type="java.lang.String">
                <column name="position" />
            </property>
        </class>
    </hibernate-mapping>

action类：

// 查询所有区域数据，返回json,支持模糊查询
        public String listajax() throws IOException{
            List<Region> list = null;//regionService.findAll();
            if(StringUtils.isNotBlank(q)){
                list = regionService.findByQ(q.trim());
            }else{
                list = regionService.findAll();
            }
            String[] excludes = new String[]{
       "subareas","province","city","district","postcode","shortcode","citycode"};
            this.writeList2Json(list, excludes);
            return NONE;
        }

为了使返回的json中含有name字段，需要在Region类中提供getName方法

## 四、分区组合条件分页查询 ##

1、为查询按钮绑定事件，调用datagrid的load方法，重新发起ajax请求，并且输入框提交参数

$("#btn").click(function(){
        
                //工具方法，可以将指定的表单中的输入项目序列号为json数据
                $.fn.serializeJson=function(){
          
                    var serializeObj={};  
                    var array=this.serializeArray();
                    $(array).each(function(){
          
                        if(serializeObj[this.name]){  
                            if($.isArray(serializeObj[this.name])){  
                                serializeObj[this.name].push(this.value);  
                            }else{  
                                serializeObj[this.name]=[serializeObj[this.name],this.value];  
                            }  
                        }else{  
                            serializeObj[this.name]=this.value;   
                        }  
                    });  
                    return serializeObj;  
                }; 
                var params = $("#searchForm").serializeJson();
                //重新发起一次ajax的请求
                $("#grid").datagrid("load",params);
                //关闭查询窗口
                $('#searchWindow').window("close");
            });

2、修改SubareaAction中的分页查询方法，封装分页查询的条件

public String pageQuery() throws Exception{
            //在查询之前，封装条件
            DetachedCriteria detachedCriteria2 = pageBean.getDetachedCriteria();
            String addresskey = model.getAddresskey();
            Region region = model.getRegion();
            if(StringUtils.isNotBlank(addresskey)){
                //按照地址关键字模糊查询
                detachedCriteria2.add(Restrictions.like("addressKey", addresskey));
            }
            if(region != null){
                //创建别名，用于多表关联查询
                detachedCriteria2.createAlias("region", "r");
                String province = region.getProvince();
                String city = region.getCity();
                String district = region.getDistrict();
                if(StringUtils.isNotBlank(province)){
                    //按照省进行模糊查询
                    detachedCriteria2.add(Restrictions.like("r.province", "%"+province+"%"));
                }
                if(StringUtils.isNotBlank(city)){
                    //按照省进行模糊查询
                    detachedCriteria2.add(Restrictions.like("r.city", "%"+city+"%"));
                }
                if(StringUtils.isNotBlank(district)){
                    //按照省进行模糊查询
                    detachedCriteria2.add(Restrictions.like("r.district", "%"+district+"%"));
                }
            }
            subareaService.pageQuery(pageBean);
            String[] excludes = new String[]{
       "detachedCriteria","currentPage","pageSize","decidedzone","subareas"};
            this.writePageBean2Json(pageBean, excludes);
            return NONE;
        }

## 五、分区数据导出功能 ##

导出Excel文件提供客户下载。  
1、为“导出”按钮绑定事件

//导出分区数据到excel文件中并提供下载
        function doExport(){
        
            //发送请求
            window.location.href = "${pageContext.request.contextPath}/subareaAction_exportXls.action";
        }

第二步：在Action中提供导出方法

/**
         * 使用POI写入Excel文件，提供下载
         * @throws IOException 
         */
        public String exportXls() throws IOException {
            List<Subarea> list = subareaService.findAll();
            // 在内存中创建一个Excel文件，通过输出流写到客户端提供下载
            HSSFWorkbook workbook = new HSSFWorkbook();
            // 创建一个sheet页
            HSSFSheet sheet = workbook.createSheet("分区数据");
            // 创建标题行
            HSSFRow headRow = sheet.createRow(0);
            headRow.createCell(0).setCellValue("分区编号");
            headRow.createCell(1).setCellValue("区域编号");
            headRow.createCell(2).setCellValue("地址关键字");
            headRow.createCell(3).setCellValue("省市区");
    
            for (Subarea subarea : list) {
                HSSFRow dataRow = sheet.createRow(sheet.getLastRowNum() + 1);
                dataRow.createCell(0).setCellValue(subarea.getId());
                dataRow.createCell(1).setCellValue(subarea.getRegion().getId());
                dataRow.createCell(2).setCellValue(subarea.getAddresskey());
                Region region = subarea.getRegion();
                dataRow.createCell(3).setCellValue(region.getProvince()+region.getCity()+region.getDistrict());
            }
    
            String filename = "分区数据.xls";
            String agent = ServletActionContext.getRequest().getHeader("User-Agent");
            filename = FileUtils.encodeDownloadFilename(filename, agent);
            //一个流两个头
            ServletOutputStream out = ServletActionContext.getResponse().getOutputStream();
            String contentType = ServletActionContext.getServletContext().getMimeType(filename);
            ServletActionContext.getResponse().setContentType(contentType);
            ServletActionContext.getResponse().setHeader("content-disposition", "attchment;filename="+filename);
            workbook.write(out);
            return NONE;
        }

## 六、源码[点我][Link 1] ##

[Link 1]: https://github.com/xiaokangjack/SSH_Logistics