查询所有客户
异步获取客户级别
ajax的代码
var url = "${pageContext.request.contextPath}/dict_findByCode.action";
var param ={"dict_type_code":"006"};
//alert(param.dict_type_code);
$.post(url,param,function(data){
//遍历
$(data).each(function(i,n){
//alert(i+":"+n);
//alert(i+":"+n.dict_item_name);
//alert(this.dict_item_name);
//先获取值栈中的值,使用EL表达式
var vsId = "${model.level.dict_id}";
//值栈中的id值和变量的id值相同,让其选中
if(vsId == n.dict_id){
//jq的dom操作
$("#levelId").append("<option value='"+n.dict_id+"' selected>"+n.dict_item_name+"</option>");
}else{
$("#levelId").append("<option value='"+n.dict_id+"' >"+n.dict_item_name+"</option>");
}
});
},"json");
DictAction的代码
public String findByCode(){
//调用业务层
// System.out.println("--------"+dict.getDict_type_code());
List<Dict> list = dictService.findByCode(dict.getDict_type_code());
// List<Dict> list = dictService.findByCode("006");
//使用fastjson把list转换成json字符串
String jsonString = FastJsonUtil.toJSONString(list);
//把json字符串写到浏览器
HttpServletResponse response = ServletActionContext.getResponse();
//输出
FastJsonUtil.write_json(response, jsonString);
return NONE;
}
CustomerAction的分页查询的代码
public String findByPage(){
//调用service业务层
DetachedCriteria criteria = DetachedCriteria.forClass(Customer.class);
//拼接查询的条件
String cust_name = customer.getCust_name();
if(cust_name !=null && !cust_name.trim().isEmpty()){
//说明,客户的名称输入值了
criteria.add(Restrictions.like("cust_name", "%"+cust_name+"%"));
}
//拼接客户级别
Dict level = customer.getLevel();
if(level!=null && !level.getDict_id().trim().isEmpty()){
//说明,客户的级别肯定选择了一个
criteria.add(Restrictions.eq("level.dict_id", level.getDict_id()));
}
Dict source = customer.getSource();
if(source!=null && !source.getDict_id().trim().isEmpty()){
//说明,客户的级别肯定选择了一个
criteria.add(Restrictions.eq("source.dict_id", source.getDict_id()));
}
//查询
PageBean<Customer> page = customerService.findByPage(pageCode,pageSize,criteria);
//压栈
ValueStack vs = ActionContext.getContext().getValueStack();
//栈顶是map<"page",page对象>
vs.set("page", page);
return "page";
}
添加客户功能(文件上传)
1、跳转到客户的添加页面,需要通过ajax来显示客户的级别,客户的来源和客户的行业
2、添加文件上传的选择项
3、客户端三个注意事项
method="post"
enctype="multipart/form-data"
<INPUT type="file" name="upload"/>
4、Struts2框架使用拦截器完成文件上传,并且底层使用也是FileUpload开源的组件
提供FileUpload拦截器,用于解析multipart/form-data编码格式请求,解析上传文件的内容
fileUpload拦截器默认在defaultStack栈中,默认会执行的
在Action中编写文件上传,需要定义三个属性
文件类型File,属性名与表单中file的name属性名一致
字符串类型String,属性名:前段是name属性名一致+ContentType
字符串类型String,属性名:前段是name属性名一致+FileName
最后需要为上述的三个属性通过set方法
可以通过FileUtils提供copyFile进行文件复制,将上传文件,保存到服务器端
5、文件上传中的问题
先配置input逻辑视图
在页面中显示错误信息
文件上传的总大小默认值是2M,如果超过了2M,程序会报出异常,可以使用<s:actionError>来查看具体信息
解决总大小的设置,找到常量
struts.multipart.parser = jakarta 默认文件上传解析器,就是FileUpload组件
struts.multipart.saveDir= 文件上传的临时文件存储目录
struts.multipart.maxSize=2097152 文件上传的最大值(总大小),默认是2M
可以在struts.xml中设置常量,修改文件上传的默认总大小
<constant name="struts.multipart.maxSize" value="20971520"></constant>
5、还可以通过配置拦截器来设置文件上传的一些属性
先在<action>标签中引入文件上传的拦截器
<interceptor-ref name="defaultStack">
<!-- 设置单个上传文件的大小 -->
<param name="fileUpload.maximumSize">2097152</param>
<!-- 决定上传文件的类型 -->
<param name="fileUpload.allowedExtensions">.jpg,.txt</param>
</interceptor-ref>
FastJsonUtil.java
package my.utils;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletResponse;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
public class FastJsonUtil {
/**
* 将对象转成json串
* @param object
* @return
*/
public static String toJSONString(Object object){
//DisableCircularReferenceDetect来禁止循环引用检测
return JSON.toJSONString(object,SerializerFeature.DisableCircularReferenceDetect);
}
//输出json
public static void write_json(HttpServletResponse response,String jsonString)
{
response.setContentType("application/json;utf-8");
response.setCharacterEncoding("UTF-8");
try {
response.getWriter().print(jsonString);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* ajax提交后回调的json字符串
* @return
*/
public static String ajaxResult(boolean success,String message)
{
Map map=new HashMap();
map.put("success", success);//是否成功
map.put("message", message);//文本消息
String json= JSON.toJSONString(map);
return json;
}
/**
* JSON串自动加前缀
* @param json 原json字符串
* @param prefix 前缀
* @return 加前缀后的字符串
*/
public static String JsonFormatterAddPrefix(String json,String prefix,Map<String,Object> newmap)
{
if(newmap == null){
newmap = new HashMap();
}
Map<String,Object> map = (Map) JSON.parse(json);
for(String key:map.keySet())
{
Object object=map.get(key);
if(isEntity(object)){
String jsonString = JSON.toJSONString(object);
JsonFormatterAddPrefix(jsonString,prefix+key+".",newmap);
}else{
newmap.put(prefix+key, object);
}
}
return JSON.toJSONString(newmap);
}
/**
* 判断某对象是不是实体
* @param object
* @return
*/
private static boolean isEntity(Object object)
{
if(object instanceof String )
{
return false;
}
if(object instanceof Integer )
{
return false;
}
if(object instanceof Long )
{
return false;
}
if(object instanceof java.math.BigDecimal )
{
return false;
}
if(object instanceof Date )
{
return false;
}
if(object instanceof java.util.Collection )
{
return false;
}
return true;
}
}
UploadUtils.java
/**
* 文件上传的工具类
* @author Administrator
*
*/
public class UploadUtils {
/**
* 传入文件的名称,返回的唯一的名称
* 例如:a,jpg 返回xdjfgdhjksda.jsp
* @param filename
* @return
*/
public static String getUUIDName(String filename){
//先查找
int index = filename.lastIndexOf(".");
//截取
String lastname = filename.substring(index, filename.length());
//唯一字符串
String uuid = UUID.randomUUID().toString().replace("-", "");
System.out.println(filename);
return uuid+lastname;
}
public static void main(String[] args) {
String filename = "a.jpg";
String uuid = getUUIDName(filename);
System.out.println(uuid);
}
}
CustomerAction
public class CustomerAction extends ActionSupport implements
ModelDriven<Customer> {
private static final long serialVersionUID = 1L;
private Customer customer = new Customer();
@Override
public Customer getModel() {
return customer;
}
private CustomerService customerService;
public void setCustomerService(CustomerService customerService) {
this.customerService = customerService;
}
/**
* 初始化到添加页面
*
* @Title: initAdd
* @return String
* @author lvc
* @since 2018年12月5日 V 1.0
*/
public String initAdd() {
return "add";
}
/**
* 文件的上传 需要在CustomerAction中定义成员的属性,命名是有规范的 private File upload; // 表示要上传的文件
* private String uoloadFileName; // 表示上传文件的名称(没有中文乱码) private String
* uploadContentType // 表示上传文件的MIME类型 提供set方法,拦截器就注入值了
*
*/
private File upload;
private String uploadFileName;
private String uploadContentType;
public void setUpload(File upload) {
this.upload = upload;
}
public void setUploadFileName(String uploadFileName) {
this.uploadFileName = uploadFileName;
}
public void setUploadContentType(String uploadContentType) {
this.uploadContentType = uploadContentType;
}
/**
* 添加客户
*
* @Title: add
* @return String
* @author lvc
* @throws IOException
* @since 2018年11月30日 V 1.0
*/
public String add() throws IOException {
// 做文件的上传,说明用户选择了上传的文件了
if (uploadFileName != null) {
// 打印
System.out.println("文件类型:" + uploadContentType);
// 把文件的名称处理一下
String uuidname = UploadUtils.getUUIDName(uploadFileName);
// 把文件上传到D:\\develop_tools\\apache-tomcat-7.0.92\\webapps\\upload\\
String path = "D:\\develop_tools\\apache-tomcat-7.0.92\\webapps\\upload\\";
// 创建file对象
File file = new File(path + uuidname);
// 简单方式
FileUtils.copyFile(upload, file);
// 把上传的文件的路径,保存到客户表中
customer.setFilePath(path + uuidname);
}
if (customer.getCust_name() != null
&& !customer.getCust_name().trim().isEmpty()) {
customerService.add(customer);
return "save";
} else {
return "add";
}
}
// 属性驱动的方式
// 当前页,默认值就是1
private Integer pageCode = 1;
public void setPageCode(Integer pageCode) {
if (pageCode == null) {
pageCode = 1;
}
this.pageCode = pageCode;
}
// 每页显示的数据的条数
private Integer pageSize = 5;
public void setPageSize(Integer pageSize) {
this.pageSize = pageSize;
}
/**
* 分页的查询方法
*
* @return
*/
public String findAll() {
// 调用service业务层
DetachedCriteria criteria = DetachedCriteria.forClass(Customer.class);
String cust_name = customer.getCust_name();
if (cust_name != null && !cust_name.trim().isEmpty()) {
// 说明客户的名称输入值了
criteria.add(Restrictions.like("cust_name", "%" + cust_name + "%"));
}
// 拼接客户的级别
Dict level = customer.getLevel();
if (level != null && !level.getDict_id().trim().isEmpty()) {
// 说明客户肯定选择了一个级别
criteria.add(Restrictions.eq("level.dict_id", level.getDict_id()));
}
// 拼接客户的来源
Dict source = customer.getSource();
if (source != null && !source.getDict_id().trim().isEmpty()) {
// 说明客户肯定选择了一个级别
criteria.add(Restrictions.eq("source.dict_id", source.getDict_id()));
}
// 查询
PageBean<Customer> page = customerService.findAll(pageCode, pageSize,
criteria);
// 压栈
ValueStack vs = ActionContext.getContext().getValueStack();
// 栈顶是map<"page",page对象>
vs.set("page", page);
return "page";
}
/**
* 删除客户
*
* @Title: delete
* @return String
* @author lvc
* @since 2018年11月30日 V 1.0
*/
public String delete() {
System.out.println("WEB层,删除客户...");
customer = customerService.findById(customer.getCust_id());
// 获取上传文件路径
String path = customer.getFilePath();
// 先删除客户
customerService.delete(customer);
// 再删除文件
File file = new File(path);
if (file.exists()) {
file.delete();
}
return "delete";
}
/**
* 加载客户信息跳转到修改页面
*
* @Title: preEdit
* @return String
* @author lvc
* @since 2018年12月5日 V 1.0
*/
public String preEdit() {
// 默认customer压栈的了,Action默认压栈,model是Action类的书写 getModel(返回customer对象)
customer = customerService.findById(customer.getCust_id());
System.out.println(customer);
return "initUpdate";
}
/**
* 更新客户信息
*
* @Title: update
* @return String
* @author lvc
* @throws IOException
* @since 2018年12月5日 V 1.0
*/
public String update() throws IOException {
// 判断说明客户上传了新图片
if (uploadFileName != null) {
// 先删除旧照片
String oldFilePath = customer.getFilePath();
if (oldFilePath != null && !oldFilePath.trim().isEmpty()) {
File file = new File(oldFilePath);
file.delete();
}
}
// 上传新图片
String uuidname = UploadUtils.getUUIDName(uploadFileName);
// 把文件上传到D:\\develop_tools\\apache-tomcat-7.0.92\\webapps\\upload\\
String path = "D:\\develop_tools\\apache-tomcat-7.0.92\\webapps\\upload\\";
// 创建file对象
File file = new File(path + uuidname);
// 简单方式
FileUtils.copyFile(upload, file);
// 把新图片路径保存到数据库
customer.setFilePath(path + uuidname);
customerService.update(customer);
return "update";
}
}
<script type="text/javascript"
src="${pageContext.request.contextPath }/js/jquery-1.11.3.min.js"></script>
<SCRIPT language=javascript>
function to_page(page) {
if (page) {
$("#page").val(page);
}
document.customerForm.submit();
}
// 页面的加载
$(function() {
// 发送ajax的请求
var url = "${ pageContext.request.contextPath }/dict_findByCode.action";
var param = {
"dict_type_code" : "006"
};
$.post(url, param, function(data) {
// 遍历
$(data).each(
function(i, n) {
// 先获取值栈中的值,使用EL表达式
var vsId = "${model.level.dict_id}";
// 值栈中的id值和遍历的id值相同,让被选中
if (vsId == n.dict_id) {
// JQ的DOM操作
$("#levelId").append(
"<option value='"+n.dict_id+"' selected>"
+ n.dict_item_name + "</option>");
} else {
$("#levelId").append(
"<option value='"+n.dict_id+"'>"
+ n.dict_item_name + "</option>");
}
});
}, "json");
// 获取来源
var param = {
"dict_type_code" : "002"
};
$.post(url, param, function(data) {
// 遍历
$(data).each(
function(i, n) {
var vsId = "${model.source.dict_id}";
if (vsId == n.dict_id) {
// JQ的DOM操作
$("#sourceId").append(
"<option value='"+n.dict_id+"' selected>"
+ n.dict_item_name + "</option>");
} else {
$("#sourceId").append(
"<option value='"+n.dict_id+"'>"
+ n.dict_item_name + "</option>");
}
});
}, "json");
});
</SCRIPT>
<META content="MSHTML 6.00.2900.3492" name=GENERATOR>
</HEAD>
<BODY>
<FORM id="customerForm" name="customerForm"
action="${pageContext.request.contextPath }/customer_findAll.action"
method=post>
<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="${pageContext.request.contextPath }/images/new_022.jpg"
border=0></TD>
<TD vAlign=top width="100%" bgColor=#ffffff>
<TABLE cellSpacing=0 cellPadding=5 width="100%" border=0>
<TR>
<TD class=manageHead>当前位置:客户管理 > 客户列表</TD>
</TR>
<TR>
<TD height=2></TD>
</TR>
</TABLE>
<TABLE borderColor=#cccccc cellSpacing=0 cellPadding=0
width="100%" align=center border=0>
<TBODY>
<TR>
<TD height=25>
<TABLE cellSpacing=0 cellPadding=2 border=0>
<TBODY>
<TR>
<TD>客户名称:</TD>
<TD><INPUT class=textbox id=sChannel2
style="WIDTH: 80px" maxLength=50 name="cust_name"
value="${ model.cust_name }"></TD>
<td>客户级别</td>
<td><select name="level.dict_id" id="levelId">
<option value="">--请选择--</option>
</select></td>
<td>客户来源</td>
<td><select name="source.dict_id" id="sourceId">
<option value="">--请选择--</option>
</select></td>
<TD><INPUT class=button id=sButton2 type=submit
value=" 筛选 " name=sButton2></TD>
</TR>
</TBODY>
</TABLE>
</TD>
</TR>
<TR>
<TD>
<TABLE id=grid
style="BORDER-TOP-WIDTH: 0px; FONT-WEIGHT: normal; BORDER-LEFT-WIDTH: 0px; BORDER-LEFT-COLOR: #cccccc; BORDER-BOTTOM-WIDTH: 0px; BORDER-BOTTOM-COLOR: #cccccc; WIDTH: 100%; BORDER-TOP-COLOR: #cccccc; FONT-STYLE: normal; BACKGROUND-COLOR: #cccccc; BORDER-RIGHT-WIDTH: 0px; TEXT-DECORATION: none; BORDER-RIGHT-COLOR: #cccccc"
cellSpacing=1 cellPadding=2 rules=all border=0>
<TBODY>
<TR
style="FONT-WEIGHT: bold; FONT-STYLE: normal; BACKGROUND-COLOR: #eeeeee; TEXT-DECORATION: none">
<TD>客户名称</TD>
<TD>客户级别</TD>
<TD>客户来源</TD>
<TD>联系人</TD>
<TD>电话</TD>
<TD>手机</TD>
<TD>操作</TD>
</TR>
<c:forEach items="${page.beanList }" var="customer">
<TR
style="FONT-WEIGHT: normal; FONT-STYLE: normal; BACKGROUND-COLOR: white; TEXT-DECORATION: none">
<TD>${customer.cust_name }</TD>
<TD>${customer.level.dict_item_name }</TD>
<TD>${customer.source.dict_item_name }</TD>
<TD>${customer.cust_linkman }</TD>
<TD>${customer.cust_phone }</TD>
<TD>${customer.cust_mobile }</TD>
<TD><a
href="${pageContext.request.contextPath }/customer_preEdit.action?cust_id=${customer.cust_id}">修改</a>
<a
href="${pageContext.request.contextPath }/customer_delete.action?cust_id=${customer.cust_id}"
onclick="return window.confirm('确认删除吗?')">删除</a></TD>
</TR>
</c:forEach>
</TBODY>
</TABLE>
</TD>
</TR>
<TR>
<TD><SPAN id=pagelink>
<DIV
style="LINE-HEIGHT: 20px; HEIGHT: 20px; TEXT-ALIGN: right">
共[<B>${page.totalCount}</B>]条记录,共[<B>${page.totalPage}</B>]页
,每页显示 <select name="pageSize">
<option value="2"
<c:if test="${page.pageSize==2 }">selected</c:if>>2</option>
<option value="5"
<c:if test="${page.pageSize==5 }">selected</c:if>>5</option>
</select> 条
<c:if test="${page.pageCode > 1 }">
[<A href="javascript:to_page(${page.pageCode-1})">前一页</A>]
</c:if>
<B>${page.pageCode}</B>
<c:if test="${page.pageCode < page.totalPage }">
[<A href="javascript:to_page(${page.pageCode+1})">后一页</A>]
</c:if>
到 <input type="text" size="3" id="page" name="pageCode" />
页 <input type="button" value="Go" onclick="to_page()" />
</DIV>
</SPAN></TD>
</TR>
</TBODY>
</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>