Struts2+Spring+Hibernate
- The Model-ViewController pattern in Struts2 is implemented with the following core component.
- Structure
- Interceptors
- Array
- Database
- Create configuration files to couple the Action, View and Controllers. These files are_______.
- Struts.xml, web.xml, struts.properties.
- Class.xml, web.xml, Struct2.html
- Class.xml, web.xml, struts.xml
- struts.xml, Class.xml,, struts.properties.
- How to enable Detailed Log.
- creating logging.properties
- creating logging.xml
- creating logging.html
- None of the above.
- Struct act much more friendly for developer if we set.
- Structs.devmode= Null;
- Structs.devmode= Auto;
- Structs.devmode= True;
- Structs.devmode= False;
- Here any line starting with hash (#) will be assumed as a ____ .
- Instruction
- Execution line
- Address
- Comments
- What are the Struts2 configuration properties that control file uploading process?
- struts.multipart.maxSize
- struts.multipart.parser
- struts.multipart.saveDir
- All of the above.
- Can you override the default error message that can come during file uploading process?
- Yes
- No
- The following code refer to.
-
- Stacking Multiple Interceptors
- Configuration Interceptor
- Action Interceptor
- Interceptor Attribute
9.You can call same interceptor with the different actions.
-
- True
- False
10. These objects include #application, #session, #request, #attr and #parameters and refer to the corresponding servlet scopes.
- True
- False
11. Object peek() Get the object on the top of the stack and changing the stack.
- True
- False
12. Which of the following sentence is the true for the ONGL
- The Object-Graph Navigation Language (OGNL) is a powerful expression language that is used to reference and manipulate data on the ValueStack.
- OGNL also helps in data transfer and type conversion.
- The OGNL is very similar to the JSP Expression Language.
- All of the above
13. If you have an attribute in session called "login" you can retrieve it as follows _______.
- <s:property value=”#session.login”/>
- <s:property value=”@session.login”>
- <s:property value=”session.login”/s>
- <s:property name=”@session.login”>
14. struts.multipart.saveDir The location to store the temporary file. By default is______.
- javax.servlet.context.Userdirectory
- javax.servlet.path.tempdir.
- javax.servlet.context.tempdir.
- javax.servlet.path.Userdirectory.
15. struts.messages.error.uploading
- A general error that occurs when the file could not be open.
- A general error that occurs when the file could not be uploaded.
- A general error that occurs when the file could not be match the name.
- A general error that occurs when the file could not be Downloaded.
16. The simplest naming format for a resource file is ______.
- Bundlename_language_country.propertiers
- Recourse_language_country.propertiers
- Bundlename_language_country.recourse
- None of the above
17. By default, English (United States) will be applied
- global_us.properties
- global_en.properties
- global.properties
- global.properties_us
18. the following instruction show the Customized them.
- Struts.ui.theme=mytheme
- Struts.ui.templateDir=template
- Struts.ui.templateSuffix= ftl
- Struts.ui.theme= Custom_theme
19. To start using annotations in your project, make sure you have included the following jar files in your _______.
- WebContent/WEB-INF/elb
- WebContent/WEB-INF/lib
- WebContent/Localhost:8080/lib
- Localhost:8080/WEB-INF/lib
20. Following is the iterator tag.
- <s:param_iterate value=”interate”>
- <s:param.iterate value=”interate”>
- < iterate value=” iterate”>
- <s:iterate value=”data”/>
21. In the following which sentence Define the Action.
- Create interceptors if required, or use existing interceptors. This is part of Controller.
- Create a class which will contain complete business logic and control the interaction between the user, the model, and the view.
- Create a JSPs to interact with the user to take input and to present the final messages.
- Create files to couple the Action, View and Controllers. These files are struts.xml, web.xml, struts.properties.
22. Following is the example to create _____ page.
- <%@ page contentType = "text/html; charset = UTF-8" %>
- <%@ taglib prefix = "s" uri = "/struts-tags" %>
- <html>
- <head>
- <title>Hello World</title>
- </head>
- <body>
- Hello World, <s:property value = "name"/>
- </body>
- </html>
- Main Page
- Action Page
- View
- File configuration
23. The Model-ViewController pattern in Struts2 is implemented with the _ core ___ components.
- Two
- Three
- Seven
- Five
- Actions
- Interceptors
- Value Stack / OGNL
- Results / Result types
- View technologies
24. Which of the following tag is used to get the property of a value, which will default to the top of the stack if none is specified?
- date tag
- Param tag
- Property tag
- Push tag
25. The following code refer to Interceptor Property
<interceptor-stack name = "basicStack">
<interceptor-ref name = "exception"/>
<interceptor-ref name = "servlet-config"/>
<interceptor-ref name = "prepare"/>
<interceptor-ref name = "checkbox"/>
<interceptor-ref name = "params"/>
<interceptor-ref name = "conversionError"/>
</interceptor-stack>
- True
- False
26. The Below file is a template where name is a parameter which will be passed from outside using the defined action.
- Hello world ${name}
- Hello World(Name)
- Helloworld(#name)
- Hello world {$name}
27. The Struts 2 framework provides built-in support for processing file upload using "Form-based File Upload in HTML".
- False
- True
28. The following chunk of code we use in _____.
import java.io.File;
import org.apache.commons.io.FileUtils;
import java.io.IOException;
- View Class
- Main Class
- Action Class
- Option (A) and (C)
29. struts.multipart.maxSize The maximum size (in bytes) of a file to be accepted as a file upload. Default is______.
- 300M
- 150M
- 250M
- 500M
30. Following is the append tag.
- <s:param_append value=”interate”>
- <s:param.append value=”interate”>
- < append value=” iterate”>
- <s:append value=”data”/>
31. struts.multipart.saveDir The location to store the temporary file. By default is javax.servlet.context.Userdirectory.
- True
- False
32. You can call same interceptor with the different actions.
- True
- False
33. Object peek() Get the object on the top of the stack and changing the stack.
- True
- False
34. What are the Struts2 configuration properties that control file uploading process?
- struts.multipart.maxSize
- struts.multipart.parser
- struts.multipart.saveDir
- All of the above
35. If you have an attribute in session called "login" you can retrieve it as follows___.
- <s:property value=”#session.login”/>
- <s:property value=”@session.login”>
- <s:property value=”session.login”/s>
- <s:property name=”@session.login”>
36. int size() Get the number of objects in the stack.
- True
- False
37. The simplest naming format for a resource file is ______.
- Bundlename_language_country.propertiers
- Recourse_language_country.propertiers
- Bundlename_language_country.recourse
- None of the above
38. In addition to the above, we have to copy the following jar files from the struts2 download in your WEB-INF/lib.
- commons-beanutils-x.y.zjar
- commons-digester-x.y.jar
- struts2-tiles-plugin-x.y.z.jar
39. The configLocation parameter specifies the name and location of the Spring configuration file, such as "applicationContext. xml".
- configLocation
- #config_Location
- configLocation_Path
- #Path_configLocation
40. commons-fileupload-x.y.z.jar, commons-io-x.y.z.jar, commons-lang-x.y.jar, commons-logging-x.y.z.jar, commons-logging-api-x.y.jar,freemarker-x.y.z.jar etc. filse are used to creat.
- Action page
- Static Project
- Dynamic Project
41. The redirect result type calls the standard ____ method, causing the browser to create a new request to the given location.
- response.sendRedirect()
- response.Redirect()
- location.sendRedirect()
- location.Redirect(path)
42. int size() Get the number of objects in the stack.
- True
- False
43. Following is the Generator tag.
- <s:param_Generator value=” Generator”>
- <s:param. Generator value=” Generate”>
- < Generator value=” iterate”>
- <s: Generator value=”data”/>
44. The configLocation parameter specifies the name and location of the Spring configuration file, such as "applicationContext. xml".
- configLocation
- #config_Location
- configLocation_Path
- #Path_configLocation
45. Which class of struts is responsible to converts data types from string?
- StrutsTypeConverter
- StringTypeConverter
- Both of the above.
- None of the above.
46. In the following which sentence Define the Configuration Files.
- Create interceptors if required, or use existing interceptors. This is part of Controller.
- Create a class which will contain complete business logic and control the interaction between the user, the model, and the view.
- Create a JSPs to interact with the user to take input and to present the final messages.
- Create files to couple the Action, View and Controllers. These files are struts.xml, web.xml, struts.properties.
47. commons-fileupload-x.y.z.jar, commons-io-x.y.z.jar, commons-lang-x.y.jar, commons-logging-x.y.z.jar, commons-logging-api-x.y.jar,freemarker-x.y.z.jar etc. filse are used to creat.
- Action page
- Static Project
- Dynamic Project
- None of the above
48. It should be noted that you can register more than one interceptors inside <package> tag and same time you can call more than one interceptors inside the <action> tag.
- True
- False
49. struts.multipart.maxSize The maximum size (in bytes) of a file to be accepted as a file upload. Default is 100M.
- True
- False
50. In addition to the above, we have to copy the following jar files from the struts2 download in your WEB-INF/lib.
- commons-beanutils-x.y.zjar
- commons-digester-x.y.jar
- struts2-tiles-plugin-x.y.z.jar
- All of the above
51. Following is the iterator tag.
- <s:param_iterate value=”interate”>
- <s:param.iterate value=”interate”>
- < iterate value=” iterate”>
- <s:iterate value=”data”/>
52. By default, English (United States) will be applied
- global_us.properties
- global_en.properties
- global.properties
- global.properties_us
53. struts.messages.error.uploading
- A general error that occurs when the file could not be open.
- A general error that occurs when the file could not be uploaded.
- A general error that occurs when the file could not be match the name.
- A general error that occurs when the file could not be Downloaded.
54. Which of the following sentence is the true for the ONGL
- The Object-Graph Navigation Language (OGNL) is a powerful expression language that is used to reference and manipulate data on the ValueStack.
- OGNL also helps in data transfer and type conversion.
- The OGNL is very similar to the JSP Expression Language.
- All of the above
55. These objects include #application, #session, #request, #attr and #parameters and refer to the corresponding servlet scopes.
- True
- False
Question #2: Write a program to show the following data grid using jQuery.
编写一个程序，使用jQuery显示以下数据网格。
1、前端文件
1 <table id="dg">
2 <div class="easyui-tabs" data-options="url:tab_data.json,tabWidth:112" style="width:700px;height:250px">
3 <div title="Order" style="padding:10px"></div>
4 <div title="Contact Inofmation" style="padding:10px"></div>
5 </div>
6 </table>
7 <script >
8 $('#dg').datagrid({
9 url:'datagrid_data.json',
10 columns:[[
11 {field: 'First Name',title:'First Name' ,width:100},
12 {field: 'Last Name' ,title:'Last Name' ,width:100},
13 {field: 'Title' ,title:'Title' ,width:100},
14 {field: 'Country' ,title:'Country' ,width:100},
15 {field: 'City' ,title:'City' ,width:100}
16 ]]
17 });
18 </script>
Question#3: Spring MVC File Upload example. (write controller class)
Spring MVC文件上传示例
1 @requestMapping(value = "/upload")
2 public String upload(@RequestParam(value="file",required=false)
3 MultipartFile file, HttpServaletRequest request, ModelMap model){
4 String path = request.getSession().getServletContext().getRealPath("upload");
5 String fileName = file.getOriginalFilename();
6 File targetFile = new File(path, fileName);
7 if(!targetFile.exists()){
8 targetFile.mkdirs();
9 }
10 try{
11 file.transferTo(targetFile);
12 }
13 catch(Exception e){
14 e.printStackTrace();
15 }
16 model.put("fileUrl",request.getContextPath()+"/upload/"+fileName);
17 return "success";
18 }
Question#4: Create the action class for the following view My Order.
为以下视图My Order创建action类。
1 public String toMyOrders() throws Exception {
2 int curPage = 1;
3 if (pager != null)
4 curPage = pager.getCurPage();
5 Users user = (Users) session.get("user");
6 Orders condition = new Orders();
7 condition.setUsers(user);
8 List myOrdersList = ordersService.getOrdersByUserIdForPager(
9 user.getId(), curPage);
10 request.put("myOrdersList", myOrdersList);
11 pager = ordersService.getPagerOfMyOrders(user.getId());
12 pager.setCurPage(curPage);
13 return "myorders";
14 }
Question#5: write a code to Create Multiple View Page in Spring MVC with example. (at least 3 pages).
编写代码在Spring MVC中创建多个视图页面的例子。(最少3页)
1 <context:component-scan
2 base-package="com.spring.action"/>
3 <bean class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
4 <property name="basename" value="views">
5 </bean>
6 <bean id="freemarkerConfig"
7 class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
8 <bean id="velocityConfig" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
9 </bean>
10 <bean id="viewResolver"
11 class="com.spring.action.MultiViewResover">
12 <property name="resolvers">
13 <map>
14 <entry key="jsp">
15 <bean
16 class="org.springframework.web.servlet.view.InternalResourceViewResolver">
17 <property name="viewClass"
18 value="org.springframework.web.servlet.view.JstlView"/>
19 <property name="prefix" value="/WEB-INF/jsp/"/>
20 <property name="suffix" value=".jsp"/>
21 </bean>
22 </entry>
23 </map>
24 </property>
25 </bean>
26 </beans>
27 第二步：解析多视图请求类
28 public class MultiViewResover implements ViewResolver {
29 private Map<String, ViewResolver> resolvers;
30 @Override
31 public View resolveViewName(String viewName, Locale locale)
32 throws Exception {
33 int n = viewName.lastIndexOf("_");
34 if (n == (-1))
35 return null;
36 String suffix = viewName.substring(n + 1);
37 ViewResolver resolver = resolvers.get(suffix);
38 hello_jsp
39 viewName = viewName.substring(0, n);
40 if (resolver != null)
41 return resolver.resolveViewName(viewName, locale);
42 return null;
43 }
44 public Map<String, ViewResolver> getResolvers() {
45 return resolvers;
46 }
47 public void setResolvers(Map<String, ViewResolver> resolvers) {
48 this.resolvers = resolvers;
49 }
50 }
51 第三步： action class
52 @Controller
53 public class HelloWorldAction {
54 @RequestMapping(value = "/helloworld.do")
55 public ModelAndView hello() {
56 ModelAndView modelAndView = new ModelAndView();
57 modelAndView.setViewName("hello_jsp");
58 modelAndView.addObject("message", "Hello,SpringMvc");
59 return modelAndView;
60 }
Question#6: write validation code for the following form using strut 2.
使用strut 2为下面的表单编写验证代码。
1 public class RegisterAction extends ActionSupport {
2 private Users user;
3 private String repassword;
4 public Users getUser() {
5 return user;
6 }
7 public void setUser(Users user) {
8 this.user = user;
9 }
10 public String getRepassword() {
11 return repassword;
12 }
13 public void setRepassword(String repassword) {
14 this.repassword = repassword;
15 }
16 @Override
17 public String execute() throws Exception {
18 UserDAO userDAO=new UserDAOImpl();
19 int result=0;
20 if (user.getLoginName()!=null && user.getLoginPwd()!=null && user.getLoginPwd().equals(repassword)) {
21 result=userDAO.addUsers(user);
22 }
23 String back;
24 if (result!=0) {
25 back="success";
26 }else{
27 back="input";
28 }
29 return back;
30 }
31 @Override
32 public void validate() {
33 if (user.getLoginName()==null || "".equals(user.getLoginName().trim())) {
34 this.addFieldError("loginName", "用户名不能为空！");
35 }
36 if (user.getLoginPwd()==null || "".equals(user.getLoginPwd().trim())) {
37 this.addFieldError("loginPwd", "密码不能为空！");
38 }
39 if (!user.getLoginPwd().equals(repassword)) {
40 this.addFieldError("repassword", "密码和确认密码不一致!");
41 }
42 }
43 }
Question#7: write a program using jQuery to create dynamic tree for the following data. Consider Checkbox selection.
使用jQuery编写一个程序，为以下数据创建动态树。考虑复选框的选择。
|
Country Name |
Capital Name |
Provinces name |
Capital of Provinces |
|
China |
Beijing |
Anhui (安徽) |
Hefei (合肥) |
|
|
|
Fujian (福建) |
Fuzhou (福州) |
|
|
|
Gansu (甘肃) |
Lanzhou (兰州) |
|
|
|
Guangdong (广东) |
Guangzhou(广州) |
|
|
|
Jiangxi (江西 |
Nanchang (南昌) |
1 <body>
2 <!-- 定义ul -->
3 <ul id="tt"></ul>
4 <script type="text/javascript">
5 $('#tt').tree({
6 url : 'tree_data.json',
7 checkbox:true
8 });
9 </script>
10 </body>
11 tree_data.json
12 [
13 {
14 "id": 1,
15 "text": "Country Name",
16 "fid": 0,
17 "children": [
18 {
19 "id":11,
20 "text":"china",
21 "fid":0
22 }
23 ]
24 },
25 {
26 "id":2,
27 "text":"Capital Name",
28 "fid":0,
29 "children":[
30 {
31 "id":21,
32 "text":"Beijing",
33 "fid":0
34 }
35 ]
36 },
37 {
38 "id":3,
39 "text":"Provinces name",
40 "fid":0,
41 "children":[
42 {
43 "id":31,
44 "text":"Anhui",
45 "fid":0
46 },
47 {
48 "id":32,
49 "text":"Fujian",
50 "fid":0
51 },
52 {
53 "id":33,
54 "text":"Gansu",
55 "fid":0
56 },
57 {
58 "id":34,
59 "text":"Guangdong",
60 "fid":0
61 },
62 {
63 "id":35,
64 "text":"jiangxi",
65 "fid":0
66 }
67 ]
68 },
69 {
70 "id":4,
71 "text":"Catital of Province",
72 "fid":0,
73 "children":[
74 {
75 "id":41,
76 "text":"hefei",
77 "fid":0
78 },
79 {
80 "id":42,
81 "text":"Fuzhou",
82 "fid":0
83 },
84 {
85 "id":43,
86 "text":"Lanzhou",
87 "fid":0
88 },
89 {
90 "id":44,
91 "text":"Guangzhou",
92 "fid":0
93 },
94 {
95 "id":45,
96 "text":"Nanchang",
97 "fid":0
98 }
99 ]
100 }
101 ]
Question#8: Write a program using Struts to complete the process of registration of employee. Create UI also. Note: (Include Name, Phone #, Gender, Address and Nationality information.)
UI代码：
注册代码如下：
1 <body> 2 <h3><font color="blue">填写注册信息</font></h3> 3 <font color="red" size="3px"> <s:fielderror /> </font> 4 <s:form name="form1" action="register" method="post"> 5 <s:textfield name="user.loginName" label="登录名称"></s:textfield> 6 <s:password name="user.loginPwd" label="登录密码"/> 7 <s:password name="repassword" label="确认密码"/> 8 <s:textfield name="user.trueName" label="真实姓名"/> 9 <s:textfield name="user.email" label="电子邮件" /> 10 <s:textfield name="user.phone" label="联系电话" /> 11 <s:textfield name="user.address" label="联系地址" /> 12 <s:submit value="注册"></s:submit> 13 </s:form> 14 </body>
注册成功代码如下：
1 <body> 2 <h3><font color="blue">用户注册的详细信息</font></h3> 3 登录名称：<s:property value="user.loginName"/><br> 4 登录密码：<s:property value="user.loginPwd"/><br> 5 真实姓名：<s:property value="user.trueName"/><br> 6 电子邮件：<s:property value="user.email"/><br> 7 联系电话：<s:property value="user.phone"/><br> 8 联系地址：<s:property value="user.address"/><br> 9 </body>
数据库插入代码如下：
1 public class UserDAOImpl extends BaseDAO implements UserDAO {
2 Connection conn=null;
3 PreparedStatement pstmt=null;
4 ResultSet rs=null;
5 @Override
6 public int addUsers(Users user) {
7 int result=0;
8 String sql="insert into users(loginName,loginPwd,trueName,email,phone,address,status) values(?,?,?,?,?,?,?)";
9 try {
10 conn=this.getConnection();
11 pstmt=conn.prepareStatement(sql);
12 pstmt.setString(1, user.getLoginName());
13 pstmt.setString(2, user.getLoginPwd());
14 pstmt.setString(3, user.getTrueName());
15 pstmt.setString(4, user.getEmail());
16 pstmt.setString(5, user.getPhone());
17 pstmt.setString(6, user.getAddress());
18 pstmt.setInt(7, 1);
19 result=pstmt.executeUpdate();
20 } catch (Exception e) {
21 e.printStackTrace();
22 }finally{
23 this.closeAll(conn, pstmt, rs);
24 }
25 return result;
26 }
27 }
控制层Action代码如下：
1 public class RegisterAction extends ActionSupport {
2 private Users user;
3 private String repassword;
4 public Users getUser() {
5 return user;
6 }
7 public void setUser(Users user) {
8 this.user = user;
9 }
10 public String getRepassword() {
11 return repassword;
12 }
13 public void setRepassword(String repassword) {
14 this.repassword = repassword;
15 }
16 @Override
17 public String execute() throws Exception {
18 UserDAO userDAO=new UserDAOImpl();
19 int result=0;
20 if (user.getLoginName()!=null && user.getLoginPwd()!=null && user.getLoginPwd().equals(repassword)) {
21 result=userDAO.addUsers(user);
22 }
23 String back;
24 if (result!=0) {
25 back="success";
26 }else{
27 back="input";
28 }
29 return back;
30 }
31 @Override
32 public void validate() {
33 if (user.getLoginName()==null || "".equals(user.getLoginName().trim())) {
34 this.addFieldError("loginName", "用户名不能为空！");
35 }
36 if (user.getLoginPwd()==null || "".equals(user.getLoginPwd().trim())) {
37 this.addFieldError("loginPwd", "密码不能为空！");
38 }
39 if (!user.getLoginPwd().equals(repassword)) {
40 this.addFieldError("repassword", "密码和确认密码不一致!");
41 }
42 }
43 }
Question#9: write the chunk of code to Perform Struts 2 Database Access. Consider Login process.
视图层代码如下：
1 <body> 2 <h3>用户登录</h3> 3 <form name="form1" method="post" action="login"> 4 用户名：<input type="text" name="user.loginName"> <br> 5 密 码：<input type="password" name="user.loginPwd"> <br> 6 <input type="submit" value="登录"> 7 <input type="reset" value="取消"> 8 </form> 9 </body>
控制层Action代码如下：
1 package com.restaurant.action;
2 import *;
3 public class LoginAction extends ActionSupport {
4 private Users user;
5 public Users getUser() {
6 return user;
7 }
8 public void setUser(Users user) {
9 this.user = user;
10 }
11 @Override
12 public String execute() throws Exception {
13 if ("admin".equals(user.getLoginName()) && "123".equals(user.getLoginPwd())) {
14 return SUCCESS; //SUCCESS 代表的就是“success”字符串
15 }else{
16 return "input";
17 }
18 }
19 }
配置Struts 2代码如下：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" 3 xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee 4 http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> 5 <display-name>restaurant</display-name> 6 <filter> 7 <filter-name>Struts2</filter-name> 8 <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class> 9 </filter> 10 <filter-mapping> 11 <filter-name>Struts2</filter-name> 12 <url-pattern>/*</url-pattern> 13 </filter-mapping> 14 </web-app>
Question#10: write a chunk of program to View meal details.
前端页面，代码如下：
1 <div class="main mt10">
2 <div class="mleft fl ah">
3 <div class="show_a fl">
4 <div class="img fl">
5 <img width="353" height="348"
6 src="mealimages/${requestScope.aMeal.mealImage}" />
7 </div>
8 <div class="canshu fl">
9 <p></p>
10 <p>编号：${requestScope.aMeal.mealId}</p>
11 <p>餐名：${requestScope.aMeal.mealName }</p>
12 <p>菜系：${requestScope.aMeal.mealseries.seriesName }</p>
13 <p> <font color="red">价格：${requestScope.aMeal.mealPrice }</font> </p>
14 </div>
15 </div>
16 <div class="show_b fl">
17 <a href="addtoshopcart?mealId=${requestScope.aMeal.mealId } ">
18 <img src="images/d010.jpg" /></a>
19 </div>
20 <div class="show_c fl">餐品详情</div>
21 <div class="show_d fl ah">
22 餐品名称：<br /> ${requestScope.aMeal.mealName }<br /> 餐品简介：<br />
23 ${requestScope.aMeal.mealSummarize }<br /> 餐品描述：<br />
24 ${requestScope.aMeal.mealDescription }
25 </div>
26 </div>
27 <%@ include file="common/rankinglist.jsp"%>
28 </div>
Question # 11: Create the action class for the following view.
Action代码如下：
1 public class RegisterAction extends ActionSupport {
2 private Users user;
3 private String repassword;
4 public Users getUser() {
5 return user;
6 }
7 public void setUser(Users user) {
8 this.user = user;
9 }
10 public String getRepassword() {
11 return repassword;
12 }
13 public void setRepassword(String repassword) {
14 this.repassword = repassword;
15 }
16 @Override
17 public String execute() throws Exception {
18 UserDAO userDAO=new UserDAOImpl();
19 int result=0;
20 if (user.getLoginName()!=null && user.getLoginPwd()!=null && user.getLoginPwd().equals(repassword)) {
21 result=userDAO.addUsers(user);
22 }
23 String back;
24 if (result!=0) {
25 back="success";
26 }else{
27 back="input";
28 }
29 return back;
30 }
31 @Override
32 public void validate() {
33 if (user.getLoginName()==null || "".equals(user.getLoginName().trim())) {
34 this.addFieldError("loginName", "用户名不能为空！");
35 }
36 if (user.getLoginPwd()==null || "".equals(user.getLoginPwd().trim())) {
37 this.addFieldError("loginPwd", "密码不能为空！");
38 }
39 if (!user.getLoginPwd().equals(repassword)) {
40 this.addFieldError("repassword", "密码和确认密码不一致!");
41 }
42 }
43 }
UserDao代码如下：
1 public class UserDAOImpl extends BaseDAO implements UserDAO {
2 Connection conn=null;
3 PreparedStatement pstmt=null;
4 ResultSet rs=null;
5 @Override
6 public int addUsers(Users user) {
7 int result=0;
8 String sql="insert into users(loginName,loginPwd,email,status) values(?,?,?,?,?,?,?)";
9 try {
10 conn=this.getConnection();
11 pstmt=conn.prepareStatement(sql);
12 pstmt.setString(1, user.getLoginName());
13 pstmt.setString(2, user.getLoginPwd());
14 pstmt.setString(3, user.getEmail());
15 pstmt.setInt(7, 1);
16 result=pstmt.executeUpdate();
17 } catch (Exception e) {
18 e.printStackTrace();
19 }finally{
20 this.closeAll(conn, pstmt, rs);
21 }
22 return result;
23 }
24 }
Question # 12: write the chunk of code for the Shopping cart function. (Action Class)
1 public class CartAction extends ActionSupport implements SessionAware {
2 private Integer mealId;
3 public void setMealId(Integer mealId) {
4 this.mealId = mealId;
5 }
6 public Integer getMealId() {
7 return mealId;
8 }
9 int quantity;
10 public int getQuantity() {
11 return quantity;
12 }
13 public void setQuantity(int quantity) {
14 this.quantity = quantity;
15 }
16 MealService mealService;
17 public void setMealService(MealService mealService) {
18 this.mealService = mealService;
19 }
20 Map<String, Object> session;
21 @Override
22 public void setSession(Map<String, Object> session) {
23 this.session = session;
24 }
25 public String addtoshopcart() throws Exception {
26 Map cart = (Map) session.get("cart");
27 Meal meal = mealService.getMealByMealId(mealId);
28 if (cart == null) {
29 cart = new HashMap();
30 session.put("cart", cart);
31 }
32 CartItemBean cartItem = (CartItemBean) cart.get(meal.getMealId());
33 if (cartItem != null) {
34 cartItem.setQuantity(cartItem.getQuantity() + 1);
35 } else {
36 cart.put(meal.getMealId(), new CartItemBean(meal, 1));
37 }
38 return "shopCart";
39 }
40 public String updateSelectedQuantity() throws Exception {
41 Map cart = (Map) session.get("cart");
42 CartItemBean cartItem = (CartItemBean) cart.get(mealId);
43 cartItem.setQuantity(quantity);
44 return "shopCart";
45 }
46 public String deleteSelectedMeal() throws Exception {
47 Map cart = (Map) session.get("cart");
48 cart.remove(mealId);
49 return "shopCart";
50 }
51 public String clearCart() throws Exception {
52 Map cart = (Map) session.get("cart");
53 cart.clear();
54 return "shopCart";
55 }
56 }
Question#13: write complete package for View meal details process: Marks (12)
前端页面，代码如下：
1 <div class="main mt10">
2 <div class="mleft fl ah">
3 <div class="show_a fl">
4 <div class="img fl">
5 <img width="353" height="348"
6 src="mealimages/${requestScope.aMeal.mealImage}" />
7 </div>
8 <div class="canshu fl">
9 <p></p>
10 <p>编号：${requestScope.aMeal.mealId}</p>
11 <p>餐名：${requestScope.aMeal.mealName }</p>
12 <p>菜系：${requestScope.aMeal.mealseries.seriesName }</p>
13 <p> <font color="red">价格：${requestScope.aMeal.mealPrice }</font> </p>
14 </div>
15 </div>
16 <div class="show_b fl">
17 <a href="addtoshopcart?mealId=${requestScope.aMeal.mealId } ">
18 <img src="images/d010.jpg" /></a>
19 </div>
20 <div class="show_c fl">餐品详情</div>
21 <div class="show_d fl ah">
22 餐品名称：<br /> ${requestScope.aMeal.mealName }<br /> 餐品简介：<br />
23 ${requestScope.aMeal.mealSummarize }<br /> 餐品描述：<br />
24 ${requestScope.aMeal.mealDescription }
25 </div>
26 </div>
27 <%@ include file="common/rankinglist.jsp"%>
28 </div>
Question#14: Write a program for log in using interceptor.
编写AuthorityInterceptor拦截器，代码如下：
1 package com.restaurant.interceptor;
2 import java.util.Map;
3 import com.opensymphony.xwork2.ActionInvocation;
4 import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
5 import com.restaurant.entity.Users;
6 public class AuthorityInterceptor extends AbstractInterceptor {
7 @Override
8 public String intercept(ActionInvocation invocation) throws Exception {
9 Map session=invocation.getInvocationContext().getSession();
10 if (session==null) {
11 return "login";
12 }
13 else{
14 Users user=(Users)session.get("user");
15 if(user==null){
16 return "login";
17 }else{
18 return invocation.invoke();
19 }
20 }
21 }
22 }
配置拦截器代码如下：
1 <package name="restaurant" namespace="/" extends="struts-default"> 2 </interceptors> 3 <interceptor name="myAuthorization" class="com.restaurant.interceptor.AuthorityInterceptor"/> 4 <interceptor-stack name="myStack"> 5 <interceptor-ref name="myAuthorization"></interceptor-ref> 6 <interceptor-ref name="defaultStack" /> 7 </interceptor-stack> 8 </interceptors> 9 //蓝色部分可省略 10 <action name="logAction" class="com.restaurant.action.LogAction"> 11 <result name="success">/ch10/main.jsp</result> 12 <result name="login">/ch10/login.jsp</result> 13 </action> 14 <action name="show" class="com.restaurant.action.ShowAction"> 15 <result name="success">/ch10/main.jsp</result> 16 <result name="login">/ch10/login.jsp</result> 17 <interceptor-ref name="myStack"></interceptor-ref> 18 </action> 19 </package>
Question#15: Write a program for insert the student detail using hibernate.
编写映射文件，代码如下：
1 //蓝色部分可省略 2 <?xml version="1.0" encoding="UTF-8"?> 3 <!DOCTYPE hibernate-mapping PUBLIC 4 "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 5 "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> 6 <hibernate-mapping package="com.hibernate.entity"> 7 <class name="User" table="users" catalog="restrant"> 8 <id name="id" type="java.lang.Integer"> 9 <column name="Id"></column> 10 <generator class="native"></generator> 11 </id> 12 <property name="loginName" type="java.lang.String"> 13 <column name="LoginName" length="20" not-null="true"></column> 14 </property> 15 <property name="loginPwd" type="java.lang.String"> 16 <column name="LoginPwd" length="20" not-null="true"/> 17 </property> 18 <property name="trueName" type="java.lang.String"> 19 <column name="TrueName" length="20" not-null="true"/> 20 </property> 21 </class> 22 </hibernate-mapping>
编写Hibernate配置文件，代码如下：
1 <!DOCTYPE hibernate-configuration PUBLIC
2 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
3 "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
4 <hibernate-configuration>
5 <session-factory>
6 <property name="connection.username">root</property>
7 <property name="connection.password">123456</property>
8 <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
9 <property name="connection.url">jdbc:mysql:///restrant</property>
10 <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
11 <property name="show_sql">true</property>
12 <mapping resource="com/hibernate/entity/User.hbm.xml"/>
13 </session-factory>
14 </hibernate-configuration>
15 编写测试类，代码如下：
16 public class HibernateTest {
17 private SessionFactory sessionFactory;
18 private Session session;
19 private Transaction transaction;
20 public void init(){
21 final StandardServiceRegistry registry=new StandardServiceRegistryBuilder().configure().build();
22 try {
23 sessionFactory=new MetadataSources(registry).buildMetadata().buildSessionFactory();
24 session=sessionFactory.openSession();
25 transaction=session.beginTransaction();
26 } catch (Exception e) {
27 StandardServiceRegistryBuilder.destroy(registry);
28 }
29 }
30 @Test
31 public void testSaveUser(){
32 User user=new User("hiberUser1","123456","用户1");
33 session.save(user);
34 }
35 @After
36 public void destroy(){
37 transaction.commit(); //提交事务
38 session.close(); //关闭session
39 sessionFactory.close(); //关闭sessionFactory
40 }
41 }
