数据采集系统开发流程-4
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清查调查
-----------------
1.调查列表-->清查调查
2.SurveyAction.clearAnswers()
public String clearAnswers(){
sid
surveyService.clearAnswers(sid);
public void clearAnswers(Integer sid){
String hql = "delete from Answer a where a.surveyId = ?" ;
answerDao.batchEntityByHQL(hql,sid);
}
return "findMySurveysAction" ;
}
3.略
4.略
打开/关闭调查
------------------
1. class Survey{
boolean closed ;//是否关闭
}
<property name="closed" column="closed" type="boolean" />
2.调查列表-->打开/关闭
3.SurveyAction.toggleStatus()方法
public String toggleStatus(){
sid
surveyService.toggleStatus(sid);
public void toggleStatus(Integer sid){
String hql = "update Survey s set s.closed = !s.closed where s.id = ?" ;
surveyDao.batchEntityByHQL(hql,sid);
}
return "findMySurveysAction" ;
}
3.略
4.略
5.需要手动修改db中的closed值,否则hibernate无法将null值赋值给基本数据类型.
增加Logo
------------------------------
1.增加属性
class Survey{
...
private String logoPhotoPath ;
}
<property name="logoPhotoPath" column="logophotopath" type="string" length="200" />
/webcontent/upload/
2.设计调查-->增加logo
3.SurveyAction.toAddLogoPage()
public String toAddLogoPage(){
sid
return "addLogoPage" ;
}
4.struts.xml
5.跳转到/addLogo.jsp
[略]
实现logo的上传
------------------------
1.选择logo页面-->提交
2.SurveyAction.doAddLogo()
public String doAddLogo(){
sid + 文件
//1.实现文件另存到/upload文件夹下
//2.更新数据库的路径信息
return "designSurveyAction" ;
}
3.略
4.略
对上传文件加以约束
-------------------------
<interceptors>
<!-- 注册登陆拦截器 -->
<interceptor name="loginInterceptor" class="com.atguigu.surveypark.struts2.interceptor.LoginInterceptor" />
<!-- 定义拦截器栈 -->
<interceptor-stack name="surveyparkStack">
<interceptor-ref name="loginInterceptor" />
<interceptor-ref name="defaultStack">
<param name="modelDriven.refreshModelBeforeResult">true</param>
<!-- 文件大小 -->
<param name="fileUpload.maximumSize">60000</param>
<!-- 文件扩展名 -->
<param name="fileUpload.allowedExtensions">.jpg,.jpeg,.png,.bmp,.gif</param>
<!-- 文件内容类型 -->
<param name="fileUpload.allowedTypes">image/jpg,image/jpeg,image/pjpeg,image/png,image/gif,image/bmp</param>
</interceptor-ref>
</interceptor-stack>
</interceptors>
对错误消息国际化
----------------------------
1.创建SurveyAction.properties
[struts-core-x.x.x.jar/org.apache.struts/struts-message.properties]
struts.messages.error.file.too.large=The file is to large to be uploaded: {0} "{1}" "{2}" {3}
struts.messages.error.content.type.not.allowed=Content-Type not allowed: {0} "{1}" "{2}" {3}
struts.messages.error.file.extension.not.allowed=File extension not allowed: {0} "{1}" "{2}" {3}
2.创建临时文件1.txt(记事本编写(gb2312))
struts.messages.error.file.too.large=文件太大!
struts.messages.error.content.type.not.allowed=类型不对!
struts.messages.error.file.extension.not.allowed=扩展名不符!
3.对1.txt进行转码(ascii码)
cmd
d:
cd xxxx
native2ascii -encoding gb2312 1.txt 2.txt
4.刷新项目,产生一个2.txt文件
5.删除1.txt文件
6.重命名2.txt --> SurveyAction_zh_CN.properties
实现动态错误页
--------------------
移动赋值页
-----------------------
1.增加属性
class Page{
...
private float orderno ;
//get/set
public void setId(Integer id){
this.id = id ;
if(id != null){
this.orderno = id ;
}
}
}
Page.hbm.xml
<property name="orderno" column="orderno" type="float">
<column="orderno" sql-type="decimal(10,5)" />
</property>
Survey.hbm.xml
<set name="orders" order-by="orderno">
2.设计调查-->移动/赋值页面
3.MoveOrCopyPageAction.toSelectTargetPage()方法
public String toSelectTargetPage(){
srcPid
this.mySurveys = surveyService.getSurveyWithPages(user);
public List<Survey> getSurveyWithPages(User user){
String hql = "from Survey s where s.user.id = ?" ;
List<Survey> list = surveyDao.findEntityByHQL(hql,user.getId());
for(Survey s : list){
s.getPages().size();
}
return list ;
}
return "moveOrCopyPageListPage" ;
}
4.struts.xml
<!-- MoveOrCopyPageAction -->
<action name="MoveOrCopyPageAction_*" class="moveOrCopyPageAction" method="{1}">
<result name="moveOrCopyPageListPage">/moveOrCopyPageList.jsp</result>
</action>
5.跳转到/moveOrCopyPageList.jsp
<>
完成移动/复制操作
-------------------
1.移动/复制Page的列表页面-->提交
2.MoveOrCopyPageAction.doMoveOrCopyPage()方法
public String doMoveOrCopyPage(){
srcPid + targPid + pos + sid
surveyService.moveOrCopyPage(srcPid,targPid,pos);
public void moveOrCopyPage(Integer srcPid,Integer targPid,int pos){
srcPid --> srcPage --> srcSurvey
targPid --> targPage --> targSurvey
//移动
if(srcSurvey.id == targSurvey.id){
setOrderno(srcPage,targPage,pos);
}
//复制
else{
//深度复制
Page newPage = ....;
setOrderno(newPage,targPage,pos);
}
}
//设置页序
public void setOrderno(Page srcPage,Page targPage,int pos){
//判断位置0-之前 1-之后
//之前
if(pos == 0){
//是否是首页
if(isFirstPage(targPage)){
srcPage.setOrderno(targPage.getOrderno() - 0.01f);
}
else{
//取得目标页前一页
Page prePage = getPrePage(targPage);
srcPage.setOrderno((targPage.getOrderno() + prePage.getOrderno()) / 2);
}
}
//之后
else{
//是否是尾页
if(isLastPage(targPage)){
srcPage.setOrderno(targPage.getOrderno() + 0.01f);
}
else{
//取得目标页下一页
Page nextPage = getNextPage(targPage);
srcPage.setOrderno((targPage.getOrderno() + nextPage.getOrderno()) / 2);
}
}
}
return "designSurveyAction" ;
}
3.略
4.略
深度复制
---------------------
/**
* 深度复制,复制的整个对象图
*/
public static Serializable deeplyCopy(Serializable src){
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(src);
oos.close();
baos.close();
byte[] bytes = baos.toByteArray();
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bais);
Serializable copy = (Serializable) ois.readObject();
ois.close();
bais.close();
return copy ;
} catch (Exception e) {
e.printStackTrace();
}
return null ;
}
移动复制页面
-----------------------
class SurveyServiceImpl ...{
...
public void moveOrCopyPage(Integer srcPid, Integer targPid, int pos){
Page srcPage = this.getPage(srcPid);
Survey srcSurvey = srcPage.getSurvey();
Page targPage = this.getPage(targPid);
Survey targSurvey = targPage.getSurvey();
//判断移动/赋值
if(srcSurvey.getId().equals(targSurvey.getId())){
setOrderno(srcPage,targPage,pos);
}
//复制
else{
//******强行初始化问题集合,否则深度复制的页面对象没有问题集合****
srcPage.getQuestions().size();
//深度复制
Page copyPage = (Page) DataUtil.deeplyCopy(srcPage);
//设置页面和目标调查关联
copyPage.setSurvey(targSurvey);
//保存页面
pageDao.saveEntity(copyPage);
for(Question q : copyPage.getQuestions()){
questionDao.saveEntity(q);
}
setOrderno(copyPage,targPage,pos);
}
}
}
-----------------
1.调查列表-->清查调查
2.SurveyAction.clearAnswers()
public String clearAnswers(){
sid
surveyService.clearAnswers(sid);
public void clearAnswers(Integer sid){
String hql = "delete from Answer a where a.surveyId = ?" ;
answerDao.batchEntityByHQL(hql,sid);
}
return "findMySurveysAction" ;
}
3.略
4.略
打开/关闭调查
------------------
1. class Survey{
boolean closed ;//是否关闭
}
<property name="closed" column="closed" type="boolean" />
2.调查列表-->打开/关闭
3.SurveyAction.toggleStatus()方法
public String toggleStatus(){
sid
surveyService.toggleStatus(sid);
public void toggleStatus(Integer sid){
String hql = "update Survey s set s.closed = !s.closed where s.id = ?" ;
surveyDao.batchEntityByHQL(hql,sid);
}
return "findMySurveysAction" ;
}
3.略
4.略
5.需要手动修改db中的closed值,否则hibernate无法将null值赋值给基本数据类型.
增加Logo
------------------------------
1.增加属性
class Survey{
...
private String logoPhotoPath ;
}
<property name="logoPhotoPath" column="logophotopath" type="string" length="200" />
/webcontent/upload/
2.设计调查-->增加logo
3.SurveyAction.toAddLogoPage()
public String toAddLogoPage(){
sid
return "addLogoPage" ;
}
4.struts.xml
5.跳转到/addLogo.jsp
[略]
实现logo的上传
------------------------
1.选择logo页面-->提交
2.SurveyAction.doAddLogo()
public String doAddLogo(){
sid + 文件
//1.实现文件另存到/upload文件夹下
//2.更新数据库的路径信息
return "designSurveyAction" ;
}
3.略
4.略
对上传文件加以约束
-------------------------
<interceptors>
<!-- 注册登陆拦截器 -->
<interceptor name="loginInterceptor" class="com.atguigu.surveypark.struts2.interceptor.LoginInterceptor" />
<!-- 定义拦截器栈 -->
<interceptor-stack name="surveyparkStack">
<interceptor-ref name="loginInterceptor" />
<interceptor-ref name="defaultStack">
<param name="modelDriven.refreshModelBeforeResult">true</param>
<!-- 文件大小 -->
<param name="fileUpload.maximumSize">60000</param>
<!-- 文件扩展名 -->
<param name="fileUpload.allowedExtensions">.jpg,.jpeg,.png,.bmp,.gif</param>
<!-- 文件内容类型 -->
<param name="fileUpload.allowedTypes">image/jpg,image/jpeg,image/pjpeg,image/png,image/gif,image/bmp</param>
</interceptor-ref>
</interceptor-stack>
</interceptors>
对错误消息国际化
----------------------------
1.创建SurveyAction.properties
[struts-core-x.x.x.jar/org.apache.struts/struts-message.properties]
struts.messages.error.file.too.large=The file is to large to be uploaded: {0} "{1}" "{2}" {3}
struts.messages.error.content.type.not.allowed=Content-Type not allowed: {0} "{1}" "{2}" {3}
struts.messages.error.file.extension.not.allowed=File extension not allowed: {0} "{1}" "{2}" {3}
2.创建临时文件1.txt(记事本编写(gb2312))
struts.messages.error.file.too.large=文件太大!
struts.messages.error.content.type.not.allowed=类型不对!
struts.messages.error.file.extension.not.allowed=扩展名不符!
3.对1.txt进行转码(ascii码)
cmd
d:
cd xxxx
native2ascii -encoding gb2312 1.txt 2.txt
4.刷新项目,产生一个2.txt文件
5.删除1.txt文件
6.重命名2.txt --> SurveyAction_zh_CN.properties
实现动态错误页
--------------------
移动赋值页
-----------------------
1.增加属性
class Page{
...
private float orderno ;
//get/set
public void setId(Integer id){
this.id = id ;
if(id != null){
this.orderno = id ;
}
}
}
Page.hbm.xml
<property name="orderno" column="orderno" type="float">
<column="orderno" sql-type="decimal(10,5)" />
</property>
Survey.hbm.xml
<set name="orders" order-by="orderno">
2.设计调查-->移动/赋值页面
3.MoveOrCopyPageAction.toSelectTargetPage()方法
public String toSelectTargetPage(){
srcPid
this.mySurveys = surveyService.getSurveyWithPages(user);
public List<Survey> getSurveyWithPages(User user){
String hql = "from Survey s where s.user.id = ?" ;
List<Survey> list = surveyDao.findEntityByHQL(hql,user.getId());
for(Survey s : list){
s.getPages().size();
}
return list ;
}
return "moveOrCopyPageListPage" ;
}
4.struts.xml
<!-- MoveOrCopyPageAction -->
<action name="MoveOrCopyPageAction_*" class="moveOrCopyPageAction" method="{1}">
<result name="moveOrCopyPageListPage">/moveOrCopyPageList.jsp</result>
</action>
5.跳转到/moveOrCopyPageList.jsp
<>
完成移动/复制操作
-------------------
1.移动/复制Page的列表页面-->提交
2.MoveOrCopyPageAction.doMoveOrCopyPage()方法
public String doMoveOrCopyPage(){
srcPid + targPid + pos + sid
surveyService.moveOrCopyPage(srcPid,targPid,pos);
public void moveOrCopyPage(Integer srcPid,Integer targPid,int pos){
srcPid --> srcPage --> srcSurvey
targPid --> targPage --> targSurvey
//移动
if(srcSurvey.id == targSurvey.id){
setOrderno(srcPage,targPage,pos);
}
//复制
else{
//深度复制
Page newPage = ....;
setOrderno(newPage,targPage,pos);
}
}
//设置页序
public void setOrderno(Page srcPage,Page targPage,int pos){
//判断位置0-之前 1-之后
//之前
if(pos == 0){
//是否是首页
if(isFirstPage(targPage)){
srcPage.setOrderno(targPage.getOrderno() - 0.01f);
}
else{
//取得目标页前一页
Page prePage = getPrePage(targPage);
srcPage.setOrderno((targPage.getOrderno() + prePage.getOrderno()) / 2);
}
}
//之后
else{
//是否是尾页
if(isLastPage(targPage)){
srcPage.setOrderno(targPage.getOrderno() + 0.01f);
}
else{
//取得目标页下一页
Page nextPage = getNextPage(targPage);
srcPage.setOrderno((targPage.getOrderno() + nextPage.getOrderno()) / 2);
}
}
}
return "designSurveyAction" ;
}
3.略
4.略
深度复制
---------------------
/**
* 深度复制,复制的整个对象图
*/
public static Serializable deeplyCopy(Serializable src){
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(src);
oos.close();
baos.close();
byte[] bytes = baos.toByteArray();
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bais);
Serializable copy = (Serializable) ois.readObject();
ois.close();
bais.close();
return copy ;
} catch (Exception e) {
e.printStackTrace();
}
return null ;
}
移动复制页面
-----------------------
class SurveyServiceImpl ...{
...
public void moveOrCopyPage(Integer srcPid, Integer targPid, int pos){
Page srcPage = this.getPage(srcPid);
Survey srcSurvey = srcPage.getSurvey();
Page targPage = this.getPage(targPid);
Survey targSurvey = targPage.getSurvey();
//判断移动/赋值
if(srcSurvey.getId().equals(targSurvey.getId())){
setOrderno(srcPage,targPage,pos);
}
//复制
else{
//******强行初始化问题集合,否则深度复制的页面对象没有问题集合****
srcPage.getQuestions().size();
//深度复制
Page copyPage = (Page) DataUtil.deeplyCopy(srcPage);
//设置页面和目标调查关联
copyPage.setSurvey(targSurvey);
//保存页面
pageDao.saveEntity(copyPage);
for(Question q : copyPage.getQuestions()){
questionDao.saveEntity(q);
}
setOrderno(copyPage,targPage,pos);
}
}
}
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