案例53-crm练习修改客户功能实现

1 CustomerAction

完整代码：

package www.test.web.action;

import java.io.File;

import org.apache.commons.lang3.StringUtils;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Restrictions;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import www.test.domain.Customer;
import www.test.service.CustomerService;
import www.test.utils.PageBean;

public class CustomerAction extends ActionSupport implements ModelDriven<Customer>{

    private Customer customer = new Customer();

    private CustomerService cs;
    private Integer currentPage;
    private Integer pageSize;

    //上传的文件会自动封装到File对象中
    //在后台提供一个与前台<input type=file name=photo/> 组件name相同的属性即可。
    private File photo;
    //在提交的键名后加上固定的后缀FileName,文件的名称会自动封装到属性中。
    private String photoFileName;
    //在提交的键名后加上固定的后缀ContentType,文件的MIME类型值会自动封装到属性中。
    private String photoContentType;

    //1  获取客户列表
    public String list() throws Exception {
        //封装离线查询对象
        DetachedCriteria dc = DetachedCriteria.forClass(Customer.class);

        //判断并封装参数
        if(StringUtils.isNotBlank(customer.getCust_name())){
            dc.add(Restrictions.like("cust_name", "%"+customer.getCust_name()+"%"));
        }

        //1 调用Service查询分页数据(PageBean)
        PageBean pb = cs.getPageBean(dc,currentPage,pageSize);
        //2 将PageBean放入request域,转发到列表页面显示
        ActionContext.getContext().put("pageBean", pb);
        return "list";
    }

    //2  保存客户
    public String add() throws Exception {

        if(photo!=null){
            System.out.println("文件名称:"+photoFileName);
            System.out.println("文件MIME类型:"+photoContentType);

            //将上传文件保存到指定位置
            //renameTo相当于剪切==>复制
            photo.renameTo(new File("C:/Users/jepson/Pictures/Saved Pictures/"+photoFileName));
        }
        //===============================================

        //调用service，保存Customer对象
        cs.save(customer);
        //重定向到Action
        return "toList";

    }

    // 3 修改客户
    public String toEdit() throws Exception {
        // 1调用service层根据id查询客户
        Customer c = cs.getById(customer.getCust_id());

        // 2将获取到的客户放入request域中
        ActionContext.getContext().put("customer", c);

        return "edit";

    }

    @Override
    public Customer getModel() {

        return customer;
    }

    public CustomerService getCs() {
        return cs;
    }

    public void setCs(CustomerService cs) {
        this.cs = cs;
    }

    public Integer getCurrentPage() {
        return currentPage;
    }

    public void setCurrentPage(Integer currentPage) {
        this.currentPage = currentPage;
    }

    public Integer getPageSize() {
        return pageSize;
    }

    public void setPageSize(Integer pageSize) {
        this.pageSize = pageSize;
    }

    public File getPhoto() {
        return photo;
    }

    public void setPhoto(File photo) {
        this.photo = photo;
    }

    public String getPhotoFileName() {
        return photoFileName;
    }

    public void setPhotoFileName(String photoFileName) {
        this.photoFileName = photoFileName;
    }

    public String getPhotoContentType() {
        return photoContentType;
    }

    public void setPhotoContentType(String photoContentType) {
        this.photoContentType = photoContentType;
    }
}

2 CustomerService&CustomerServiceImpl

完整代码：

package www.test.service;

import org.hibernate.criterion.DetachedCriteria;

import www.test.domain.Customer;
import www.test.utils.PageBean;

public interface CustomerService {

    PageBean getPageBean(DetachedCriteria dc, Integer currentPage, Integer pageSize);

    //保存客户
    void save(Customer customer);

    //根据id查询客户
    Customer getById(Long cust_id);

}

package www.test.service.impl;

import java.util.List;

import org.hibernate.criterion.DetachedCriteria;

import www.test.dao.CustomerDao;
import www.test.domain.Customer;
import www.test.service.CustomerService;
import www.test.utils.PageBean;

public class CustomerServiceImpl implements CustomerService {

    private CustomerDao cd;
    @Override
    // 1 封装一个PageBean返回给web层
    public PageBean getPageBean(DetachedCriteria dc, Integer currentPage, Integer pageSize) {

        // 1 调用dao层查询总记录数
        Integer totalCount = cd.getTotalCount(dc);

        // 2创建pageBean对象
        PageBean pb = new PageBean(currentPage, pageSize, totalCount);

        // 3查询客户列表
        List<Customer> list = cd.getPageList(dc,pb.getStart(),pb.getPageSize());

        // 4返回pageBean
        pb.setList(list);
        return pb;
    }

    @Override
    // 2 保存客户
    public void save(Customer customer) {
        //1 维护Customer与数据字典对象的关系
        //正常情况下：应该调用Dao取出数据字典对象，将数据字典对象设置到Customer对象的对应属性中。
        //但是：由于struts的参数封装会将参数封装到数据字典的id属性。那么无需手动维护关系。

        //2调用Dao保存客户
        cd.saveOrUpdate(customer);
    }

    @Override
    // 3 根据id查询客户
    public Customer getById(Long cust_id) {
        Customer customer = cd.getById(cust_id);
        return customer;
    }

    public CustomerDao getCd() {
        return cd;
    }
    public void setCd(CustomerDao cd) {
        this.cd = cd;
    }

}

3 BaseDao&BaseDaoImpl

package www.test.dao;

import java.io.Serializable;
import java.util.List;

import org.hibernate.criterion.DetachedCriteria;

public interface BaseDao<T> {

    //增或修改 [实质是根据要保存的对象是否有id属性判断的]
    void saveOrUpdate(T t);

    //增
    void save(T t);

    //删
    void delete(T t);

    //删  Serializable包括了8大包装类型
    void delete(Serializable id);

    //改
    void update(T t);

    //查 根据id查询
    T getById(Serializable id);

    //查  符合条件的总记录数
    Integer getTotalCount(DetachedCriteria dc);

    //查 查询分页列表数据
    List<T> getPageList(DetachedCriteria dc,Integer start,Integer pageSize);

}

package www.test.dao.impl;

import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.util.List;

import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import www.test.dao.BaseDao;

public class BaseDaoImpl<T> extends HibernateDaoSupport implements BaseDao<T> {

    private Class clazz; // 用于接收运行期泛型类型

    public BaseDaoImpl() {
        // 获得当前类型的带有泛型类型的父类
        // this.getClass().getGenericSuperclass();运行在BaseDaoImpl的儿子(谁继承了它)
        // 所以它的父类就是BaseDaoImpl
        ParameterizedType ptClass = (ParameterizedType) this.getClass().getGenericSuperclass();

        // 获得运行期的泛型类型
        clazz = (Class) ptClass.getActualTypeArguments()[0];
    }

    @Override
    //保存或者修改
    public void saveOrUpdate(T t) {
        super.getHibernateTemplate().saveOrUpdate(t);
    }

    @Override
    public void save(T t) {
        super.getHibernateTemplate().save(t);
    }

    @Override
    public void delete(T t) {
        super.getHibernateTemplate().delete(t);
    }

    @Override
    public void delete(Serializable id) {
        // 先获取，然后在删除
        T t = this.getById(id);
        super.getHibernateTemplate().delete(t);
    }

    @Override
    public void update(T t) {
        super.getHibernateTemplate().update(t);
    }

    @Override
    public T getById(Serializable id) {
        return (T) super.getHibernateTemplate().get(clazz, id);

    }

    @Override
    public Integer getTotalCount(DetachedCriteria dc) {
        // 设置查询聚合函数，总记录数
        dc.setProjection(Projections.rowCount());

        List<Long> list = (List<Long>) super.getHibernateTemplate().findByCriteria(dc);

        // 清空之前设置的聚合函数
        dc.setProjection(null);

        if (list != null && list.size() > 0) {
            Long count = list.get(0);
            return count.intValue();
        } else {
            return null;
        }
    }

    @Override
    public List<T> getPageList(DetachedCriteria dc, Integer start, Integer pageSize) {

        List<T> list = (List<T>) super.getHibernateTemplate().findByCriteria(dc, start, pageSize);

        return list;
    }

}

4 add.jsp(重点)

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<TITLE><s:property value="#customer==null?'添加':'修改'"/>客户</TITLE>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<LINK href="${pageContext.request.contextPath }/css/Style.css" type=text/css rel=stylesheet>
<LINK href="${pageContext.request.contextPath }/css/Manage.css" type=text/css
    rel=stylesheet>
<script type="text/javascript" src="${pageContext.request.contextPath }/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath }/js/my.js"></script>
<script type="text/javascript">
    $(function(){
        //cust_level.dict_id是对象驱动的提交方式
        loadSelect("006","level","cust_level.dict_id"<s:if test="#customer.cust_level!=null">,<s:property value="#customer.cust_level.dict_id"/></s:if>); 

        /* <s:if test="#customer.cust_level!=null">
               ,<s:property value="#customer.cust_level.dict_id"/>
            </s:if>
         */
        /* 编译器报错，看不懂是正常的 */
        loadSelect("002","source","cust_source.dict_id"<s:if test="#customer.cust_source!=null">,<s:property value="#customer.cust_source.dict_id"/></s:if>);
        loadSelect("001","industry","cust_industry.dict_id"<s:if test="#customer.cust_industry!=null">,<s:property value="#customer.cust_industry.dict_id"/></s:if>);
    });
</script>

<META content="MSHTML 6.00.2900.3492" name=GENERATOR>
</HEAD>
<BODY>
    <!-- 文件上传页面的三个要求
        1.表单必须是post提交
        2.表单提交类型必须为enctype,多段式提交。
        3.文件上传使用<input type="file"/>

     -->

    <FORM id=form1 name=form1
        action="${pageContext.request.contextPath }/CustomerAction_add"
        method=post enctype="multipart/form-data">

        <!-- 使用隐藏域将客户的id保存 -->
        <input type="hidden" name="cust_id" value="<s:property value="#customer.cust_id"/>">

        <TABLE cellSpacing=0 cellPadding=0 width="98%" border=0>
            <TBODY>
                <TR>
                    <TD width=15><IMG src="${pageContext.request.contextPath }/images/new_019.jpg"
                        border=0></TD>
                    <TD width="100%" background="${pageContext.request.contextPath }/images/new_020.jpg"
                        height=20></TD>
                    <TD width=15><IMG src="${pageContext.request.contextPath }/images/new_021.jpg"
                        border=0></TD>
                </TR>
            </TBODY>
        </TABLE>
        <TABLE cellSpacing=0 cellPadding=0 width="98%" border=0>
            <TBODY>
                <TR>
                    <TD width=15 background=${pageContext.request.contextPath }/images/new_022.jpg><IMG
                        src="${pageContext.request.contextPath }/images/new_022.jpg" border=0></TD>
                    <TD vAlign=top width="100%" bgColor=#ffffff>
                        <TABLE cellSpacing=0 cellPadding=5 width="100%" border=0>
                            <TR>
                                <TD class=manageHead>当前位置：客户管理 &gt; <s:property value="#customer==null?'添加':'修改'"/>客户</TD>
                            </TR>
                            <TR>
                                <TD height=2></TD>
                            </TR>
                        </TABLE>

                        <TABLE cellSpacing=0 cellPadding=5  border=0>

                            <TR>
                                <td>客户名称：</td>
                                <td>
                                <INPUT class=textbox id=sChannel2 value="<s:property value="#customer.cust_name"/>"
                                                        style="WIDTH: 180px" maxLength=50 name="cust_name">
                                </td>
                                <td>客户级别 ：</td>
                                <td id="level">

                                </td>
                            </TR>

                            <TR>

                                <td>信息来源 ：</td>
                                <td id="source">

                                </td>
                                <td>客户行业：</td>
                                <td id="industry">

                                </td>
                            </TR>

                            <TR>
                                <td>固定电话 ：</td>
                                <td>
                                <INPUT class=textbox id=sChannel2 value="<s:property value="#customer.cust_phone"/>"
                                                        style="WIDTH: 180px" maxLength=50 name="cust_phone">
                                </td>
                                <td>移动电话 ：</td>
                                <td>
                                <INPUT class=textbox id=sChannel2 value="<s:property value="#customer.cust_mobile"/>"
                                                        style="WIDTH: 180px" maxLength=50 name="cust_mobile">
                                </td>
                            </TR>
                            <!-- 文件上传页面的三个要求
                                1.表单必须是post提交
                                2.表单提交类型必须为enctype,多段式提交。
                                3.文件上传使用<input type="file"/>

                             -->
                            <TR>
                                <td>图片上传 :</td>
                                <td>
                                 <input type="file" name="photo">
                                </td>

                            </TR>

                            <tr>
                                <td rowspan=2>
                                <INPUT class=button id=sButton2 type=submit
                                                        value="保存 " name=sButton2>
                                </td>
                            </tr>
                        </TABLE>

                    </TD>
                    <TD width=15 background="${pageContext.request.contextPath }/images/new_023.jpg">
                    <IMG src="${pageContext.request.contextPath }/images/new_023.jpg" border=0></TD>
                </TR>
            </TBODY>
        </TABLE>
        <TABLE cellSpacing=0 cellPadding=0 width="98%" border=0>
            <TBODY>
                <TR>
                    <TD width=15><IMG src="${pageContext.request.contextPath }/images/new_024.jpg"
                        border=0></TD>
                    <TD align=middle width="100%"
                        background="${pageContext.request.contextPath }/images/new_025.jpg" height=15></TD>
                    <TD width=15><IMG src="${pageContext.request.contextPath }/images/new_026.jpg"
                        border=0></TD>
                </TR>
            </TBODY>
        </TABLE>
    </FORM>
</BODY>
</HTML>

5 list.jsp

6 struts.xml