SpringMVC(四)

文章目录

- Spring MVC下拉选项(Select)
- Spring MVC列表多选框
- Spring MVC隐藏字段域
- Spring MVC错误处理
- Spring MVC文件上传处理
- Spring MVC控制器类名称处理映射
- Spring MVC控制器类名称处理映射样例
- Spring MVC简单URL处理程序映射

Spring MVC下拉选项(Select)

创建一个名称为 Dropdown 的动态WEB项目。
在 com.yiibai.springmvc 包下创建两个Java类User，UserController
在jsp子文件夹下创建两个视图文件：user.jsp，userlist.jsp

**User.java **

package com.yiibai.springmvc;
public class User {

   private String username;
   private String password;
   private String address;
   private boolean receivePaper;
   private String [] favoriteframeworks;   
   private String gender;
   private String favoriteNumber;
   private String country;

   public String getUsername() {
      return username;
   }
   public void setUsername(String username) {
      this.username = username;
   }

   public String getPassword() {
      return password;
   }
   public void setPassword(String password) {
      this.password = password;
   }
   public String getAddress() {
      return address;
   }
   public void setAddress(String address) {
      this.address = address;
   }
   public boolean isReceivePaper() {
      return receivePaper;
   }
   public void setReceivePaper(boolean receivePaper) {
      this.receivePaper = receivePaper;
   }
   public String[] getFavoriteframeworks() {
      return favoriteframeworks;
   }
   public void setFavoriteframeworks(String[] favoriteframeworks) {
      this.favoriteframeworks = favoriteframeworks;
   }
   public String getGender() {
      return gender;
   }
   public void setGender(String gender) {
      this.gender = gender;
   }
   public String getFavoriteNumber() {
      return favoriteNumber;
   }
   public void setFavoriteNumber(String favoriteNumber) {
      this.favoriteNumber = favoriteNumber;
   }
   public String getCountry() {
      return country;
   }
   public void setCountry(String country) {
      this.country = country;
   }
}

UserController.java

package com.yiibai.springmvc;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.ui.ModelMap;

@Controller
public class UserController {

   @RequestMapping(value = "/user", method = RequestMethod.GET)
   public ModelAndView user() {
      User user = new User();      
      user.setFavoriteframeworks((new String []{"Spring MVC","Struts 2"}));
      user.setGender("M");
      ModelAndView modelAndView = new ModelAndView("user", "command", user);
      return modelAndView;
   }

   @RequestMapping(value = "/addUser", method = RequestMethod.POST)
   public String addUser(@ModelAttribute("SpringWeb")User user, 
      ModelMap model) {
      model.addAttribute("username", user.getUsername());
      model.addAttribute("password", user.getPassword());
      model.addAttribute("address", user.getAddress());
      model.addAttribute("receivePaper", user.isReceivePaper());
      model.addAttribute("favoriteframeworks", user.getFavoriteframeworks());
      model.addAttribute("gender", user.getGender());
      model.addAttribute("favoriteNumber", user.getFavoriteNumber());
      model.addAttribute("country", user.getCountry());     
      return "userlist";
   }

   @ModelAttribute("webframeworkList")
   public List getWebframeworkList()
   {
      List webframeworkList = new ArrayList();
      webframeworkList.add("Spring MVC");
      webframeworkList.add("Struts 1");
      webframeworkList.add("Struts 2");
      webframeworkList.add("Apache Wicket");
      return webframeworkList;
   }

   @ModelAttribute("numbersList")
   public List getNumbersList()
   {
      List numbersList = new ArrayList();
      numbersList.add("1");
      numbersList.add("2");
      numbersList.add("3");
      numbersList.add("4");
      return numbersList;
   }

   @ModelAttribute("countryList")
   public Map getCountryList()
   {
      Map countryList = new HashMap();
      countryList.put("US", "United States");
      countryList.put("CH", "China");
      countryList.put("SG", "Singapore");
      countryList.put("MY", "Malaysia");
      return countryList;
   }
}

第一个服务方法user()在ModelAndView对象中传递了一个名称为“command”的空User对象，因为如果在JSP文件中使用form:form标签，spring框架需要一个名称为“command”的对象。所以当调用user()方法时，它返回user.jsp视图。
第二个服务方法addUser()将根据URL => Dropdown/addUser 上的POST方法请求时调用。根据提交的信息准备模型对象。最后从服务方法返回“userlist”视图，这将呈现userlist.jsp视图

user.jsp

<%@ page contentType="text/html; charset=UTF-8"%>

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


Spring MVC表单处理(下拉选择)



    用户信息
    
        
            
                用户名：
                
            
            
                密码：
                
            
            
                地址：
                
            
            
                是否订阅：
                
            
            
                喜欢的框架/技术：
                
            
            
                性别：
                 
            
            
                喜欢的数字：
                
            
            
                所在国家：

userlist.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


Spring MVC表单处理(下拉选择)



    提交用户信息 -
    
        
            用户名：
            ${username}
        
        
            密码：
            ${password}
        
        
            地址：
            ${address}
        
        
            是否订阅：
            ${receivePaper}
        
        
            喜欢的技术/框架：
            
                <%
                    String[] favoriteframeworks = (String[]) request.getAttribute("favoriteframeworks");
                    for (String framework : favoriteframeworks) {
                        out.println(framework);
                    }
                %>
            
        
        
            性别：
            ${(gender=="M"? "男" : "女")}
        
        
         喜欢的数字：
         ${favoriteNumber}
        
      
         国家：
         ${country}

Spring MVC列表多选框

创建一个名称为 Listbox 的动态WEB项目。
在 com.yiibai.springmvc 包下创建两个Java类User，UserController
在jsp子文件夹下创建两个视图文件：user.jsp，userlist.jsp

User.java

package com.yiibai.springmvc;
public class User {

       private String username;
       private String password;
       private String address;
       private boolean receivePaper;
       private String [] favoriteframeworks;   
       private String gender;
       private String favoriteNumber;
       private String country;
       private String [] skills;

       public String getUsername() {
          return username;
       }
       public void setUsername(String username) {
          this.username = username;
       }

       public String getPassword() {
          return password;
       }
       public void setPassword(String password) {
          this.password = password;
       }
       public String getAddress() {
          return address;
       }
       public void setAddress(String address) {
          this.address = address;
       }
       public boolean isReceivePaper() {
          return receivePaper;
       }
       public void setReceivePaper(boolean receivePaper) {
          this.receivePaper = receivePaper;
       }
       public String[] getFavoriteframeworks() {
          return favoriteframeworks;
       }
       public void setFavoriteframeworks(String[] favoriteframeworks) {
          this.favoriteframeworks = favoriteframeworks;
       }
       public String getGender() {
          return gender;
       }
       public void setGender(String gender) {
          this.gender = gender;
       }
       public String getFavoriteNumber() {
          return favoriteNumber;
       }
       public void setFavoriteNumber(String favoriteNumber) {
          this.favoriteNumber = favoriteNumber;
       }
       public String getCountry() {
          return country;
       }
       public void setCountry(String country) {
          this.country = country;
       }
       public String[] getSkills() {
          return skills;
       }
       public void setSkills(String[] skills) {
          this.skills = skills;
       }
    }

**UserController.java **

package com.yiibai.springmvc;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.ui.ModelMap;

@Controller
public class UserController {

   @RequestMapping(value = "/user", method = RequestMethod.GET)
   public ModelAndView user() {
      User user = new User();      
      user.setFavoriteframeworks((new String []{"Spring MVC","Struts 2"}));
      user.setGender("M");
      ModelAndView modelAndView = new ModelAndView("user", "command", user);
      return modelAndView;
   }

   @RequestMapping(value = "/addUser", method = RequestMethod.POST)
   public String addUser(@ModelAttribute("SpringWeb")User user, 
      ModelMap model) {
      model.addAttribute("username", user.getUsername());
      model.addAttribute("password", user.getPassword());
      model.addAttribute("address", user.getAddress());
      model.addAttribute("receivePaper", user.isReceivePaper());
      model.addAttribute("favoriteframeworks", user.getFavoriteframeworks());
      model.addAttribute("gender", user.getGender());
      model.addAttribute("favoriteNumber", user.getFavoriteNumber());
      model.addAttribute("country", user.getCountry());
      model.addAttribute("skills", user.getSkills());
      return "userlist";
   }

   @ModelAttribute("webframeworkList")
   public List getWebframeworkList()
   {
      List webframeworkList = new ArrayList();
      webframeworkList.add("Spring MVC");
      webframeworkList.add("Struts 1");
      webframeworkList.add("Struts 2");
      webframeworkList.add("Apache Hadoop");
      return webframeworkList;
   }

   @ModelAttribute("numbersList")
   public List getNumbersList()
   {
      List numbersList = new ArrayList();
      numbersList.add("1");
      numbersList.add("2");
      numbersList.add("3");
      numbersList.add("4");
      return numbersList;
   }

   @ModelAttribute("countryList")
   public Map getCountryList()
   {
      Map countryList = new HashMap();
      countryList.put("US", "United States");
      countryList.put("CH", "China");
      countryList.put("SG", "Singapore");
      countryList.put("MY", "Malaysia");
      return countryList;
   }

   @ModelAttribute("skillsList")
   public Map getSkillsList()
   {
      Map skillList = new HashMap();
      skillList.put("Hibernate", "Hibernate");
      skillList.put("Spring", "Spring");
      skillList.put("Apache Hadoop", "Apache Hadoop");
      skillList.put("Struts", "Struts");
      return skillList;
   }
}

第一个服务方法user()，我们已经在ModelAndView对象中传递了一个名称为“command”的空User对象，因为如果在JSP文件中使用form:form标签，spring框架需要一个名称为“command”的对象。所以当调用user()方法时，它返回user.jsp视图。
第二个服务方法addUser()将根据URL => Listbox/addUser 上的POST方法请求时调用。根据提交的信息准备模型对象。最后从服务方法返回“userlist”视图，这将呈现userlist.jsp视图

user.jsp

<%@ page contentType="text/html; charset=UTF-8"%>

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


Spring MVC表单处理(列表框)



    用户信息
    
        
            
                用户名：
                
            
            
                密码：
                
            
            
                地址：
                
            
            
                是否订阅：
                
            
            
                喜欢的框架/技术：
                
            
            
                性别：
                 
            
            
                喜欢的数字：
                
            
            
                所在国家：
                
                        
                        
                    
            
            
            技术：

userlist.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


Spring MVC表单处理(列表框)



    提交用户信息 -
    
        
            用户名：
            ${username}
        
        
            密码：
            ${password}
        
        
            地址：
            ${address}
        
        
            是否订阅：
            ${receivePaper}
        
        
            喜欢的技术/框架：
            
                <%
                    String[] favoriteframeworks = (String[]) request.getAttribute("favoriteframeworks");
                    for (String framework : favoriteframeworks) {
                        out.println(framework);
                    }
                %>
            
        
        
            性别：
            ${(gender=="M"? "男" : "女")}
        
        
            喜欢的数字：
            ${favoriteNumber}
        
        
            国家：
            ${country}
        
        
                技术：
                
                    <%
                        String[] skills = (String[]) request.getAttribute("skills");
                            for (String skill : skills) {
                                out.println(skill);
                            }
                    %>

Spring MVC隐藏字段域

创建一个名称为 Hiddenfield 的动态WEB项目
在 com.yiibai.springmvc 包下创建两个Java类Student，StudentController
在jsp子文件夹下创建两个视图文件：student.jsp，result.jsp

Student.java

package com.yiibai.springmvc;


public class Student {
    private Integer age;
    private String name;
    private Integer id;

    public void setAge(Integer age) {
        this.age = age;
    }

    public Integer getAge() {
        return age;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public Integer getId() {
        return id;
    }
}

StudentController.java

package com.yiibai.springmvc;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.ui.ModelMap;

@Controller
public class StudentController {

    @RequestMapping(value = "/student", method = RequestMethod.GET)
    public ModelAndView student() {
        return new ModelAndView("student", "command", new Student());
    }

    @RequestMapping(value = "/addStudent", method = RequestMethod.POST)
    public String addStudent(@ModelAttribute("SpringWeb") Student student, ModelMap model) {
        model.addAttribute("name", student.getName());
        model.addAttribute("age", student.getAge());
        model.addAttribute("id", student.getId());

        return "result";
    }
}

第一个服务方法student()，我们已经在ModelAndView对象中传递了一个名称为“command”的空Student对象，因为如果在JSP文件中使用form:form标签，spring框架需要一个名称为“command”的对象。所以当调用student()方法时，它返回student.jsp视图。
第二个服务方法addStudent()将根据URL => Hiddenfield/addStudent 上的POST方法请求时调用。根据提交的信息准备模型对象。最后从服务方法返回“result”视图，这将呈现result.jsp视图

student.jsp

<%@ page contentType="text/html; charset=UTF-8" %>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


    Spring MVC处理(隐藏字段)



学生信息：

   
    
        学生姓名：
        
    
    
        年龄：

result.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


Spring MVC处理(隐藏字段)



    提交的学生信息：
    
        
            学生姓名：
            ${name}
        
        
            年龄：
            ${age}
        
        
            编号：
            ${id}

Spring MVC错误处理

创建一个名称为 ErrorHandling 的动态WEB项目。
在 com.yiibai.springmvc 包下创建三个Java类Student，StudentController和StudentValidator
在jsp子文件夹下创建两个视图文件：addStudent.jsp，result.jsp
Student.java

package com.yiibai.springmvc;

public class Student {
   private Integer age;
   private String name;
   private Integer id;

   public void setAge(Integer age) {
      this.age = age;
   }
   public Integer getAge() {
      return age;
   }

   public void setName(String name) {
      this.name = name;
   }
   public String getName() {
      return name;
   }

   public void setId(Integer id) {
      this.id = id;
   }
   public Integer getId() {
      return id;
   }
}

StudentValidator.java

package com.yiibai.springmvc;

import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;

public class StudentValidator implements Validator {

   @Override
   public boolean supports(Class clazz) {
      return Student.class.isAssignableFrom(clazz);
   }

   @Override
   public void validate(Object target, Errors errors) {        
      ValidationUtils.rejectIfEmptyOrWhitespace(errors, 
         "name", "required.name","Field name is required.");
   }
}

StudentController.java

package com.yiibai.springmvc;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.Validator;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class StudentController {

   @Autowired
   @Qualifier("studentValidator")
   private Validator validator;

   @InitBinder
   private void initBinder(WebDataBinder binder) {
      binder.setValidator(validator);
   }

   @RequestMapping(value = "/addStudent", method = RequestMethod.GET)
   public ModelAndView student() {
      return new ModelAndView("addStudent", "command", new Student());
   }

   @ModelAttribute("student")
   public Student createStudentModel() {    
      return new Student();
   }

   @RequestMapping(value = "/addStudent", method = RequestMethod.POST)
   public String addStudent(@ModelAttribute("student") @Validated Student student, 
      BindingResult bindingResult, Model model) {

      if (bindingResult.hasErrors()) {
         return "addStudent";
      }
      model.addAttribute("name", student.getName());
      model.addAttribute("age", student.getAge());
      model.addAttribute("id", student.getId());

      return "result";
   }
}

第一个服务方法student()，我们已经在ModelAndView对象中传递了一个名称为“command”的空Student对象，因为如果在JSP文件中使用form:form标签，spring框架需要一个名称为“command”的对象。所以当调用student()方法时，它返回student.jsp视图。
第二个服务方法addStudent()将根据URL => ErrorHandling/addStudent 上的POST方法请求时调用。根据提交的信息准备模型对象。最后从服务方法返回“result”视图，这将呈现result.jsp视图。

addStudent.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


Spring MVC表单错误处理




    学生信息
    
        
        
            
                姓名：
                
                
            
            
                年龄：
                
            
            
                编号：

result.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>


    Spring MVC表单错误处理



Submitted Student Information
   
    
        姓名：
        ${name}
    
    
        年龄：
        ${age}
    
    
        编号：
        ${id}

Spring MVC文件上传处理

创建一个名称为 FileUpload 的动态WEB项目。
在 com.yiibai.springmvc 包下创建两个Java类FileModel, FileUploadController
在jsp子文件夹下创建两个视图文件：fileUpload.jsp 和 success.jsp
在WebContent文件夹下创建一个文件夹：temp

FileModel.java

package com.yiibai.springmvc;

import org.springframework.web.multipart.MultipartFile;

public class FileModel {
   private MultipartFile file;

   public MultipartFile getFile() {
      return file;
   }

   public void setFile(MultipartFile file) {
      this.file = file;
   }
}

FileUploadController.java

package com.yiibai.springmvc;

import java.io.File;
import java.io.IOException;

import javax.servlet.ServletContext;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.util.FileCopyUtils;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class FileUploadController {

   @Autowired
   ServletContext context; 

   @RequestMapping(value = "/fileUploadPage", method = RequestMethod.GET)
   public ModelAndView fileUploadPage() {
      FileModel file = new FileModel();
      ModelAndView modelAndView = new ModelAndView("fileUpload", "command", file);
      return modelAndView;
   }

   @RequestMapping(value="/fileUploadPage", method = RequestMethod.POST)
   public String fileUpload(@Validated FileModel file, BindingResult result, ModelMap model) throws IOException {
      if (result.hasErrors()) {
         System.out.println("validation errors");
         return "fileUploadPage";
      } else {            
         System.out.println("Fetching file");
         MultipartFile multipartFile = file.getFile();
         String uploadPath = context.getRealPath("") + File.separator + "temp" + File.separator;
         //Now do something with file...
         FileCopyUtils.copy(file.getFile().getBytes(), new File(uploadPath+file.getFile().getOriginalFilename()));
         String fileName = multipartFile.getOriginalFilename();
         model.addAttribute("fileName", fileName);
         return "success";
      }
   }
}

FileUpload-servlet.xml

第一个服务方法fileUploadPage()，我们已经在名为“command”的ModelAndView对象中传递了一个空的FileModel对象，因为如果JSP文件中使用标签，spring框架期望一个名称为“command”的对象。因此，当调用fileUploadPage()方法时，它返回fileUpload.jsp视图。
第二个服务方法fileUpload()将根据 URL => FileUpload/fileUploadPage上的POST方法进行调用。将根据提交的信息准备要上传的文件。最后从服务方法返回“success”视图，这将呈现success.jsp视图。

fileUpload.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>


Spring MVC上传文件示例


    
      请选择一个文件上传 :

success.jsp

<%@ page contentType="text/html; charset=UTF-8"%>


Spring MVC上传文件示例


    文件名称 :
     ${fileName}  - 上传成功！

Spring MVC控制器类名称处理映射

ControllerClassNameHandlerMapping类是基于约定的处理程序映射类，它将URL请求映射到配置中提到的控制器的名称
ControllerClassNameHandlerMapping类接受控制器名称并将其转换为带有前导/的小写形式
例如HelloController映射到URL:“/hello*”。

样例代码

对于/helloWorld.html或/hello{任何字母}.html，DispatcherServlet将请求转发到HelloController类。
对于/welcome.html，DispatcherServlet会将请求转发给WelcomeController类。
对于/welcome1.html，DispatcherServlet将不会找到任何控制器，服务器将抛出404状态错误

Spring MVC控制器类名称处理映射样例

创建一个名称为 ControllerClassNameHandlerMapping 的动态WEB项目
在 com.yiibai.springmvc 包下创建两个Java类HelloController和 WelcomeController
在jsp子文件夹下创建两个视图文件：hello.jsp 和 welcome.jsp

HelloController.java

package com.yiibai.springmvc;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class HelloController extends AbstractController{

   @Override
   protected ModelAndView handleRequestInternal(HttpServletRequest request,
      HttpServletResponse response) throws Exception {
      ModelAndView model = new ModelAndView("hello");
      model.addObject("message", "Hello World!");
      return model;
   }c
}

WelcomeController.java

package com.yiibai.springmvc;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class WelcomeController extends AbstractController{

   @Override
   protected ModelAndView handleRequestInternal(HttpServletRequest request,
      HttpServletResponse response) throws Exception {
      ModelAndView model = new ModelAndView("welcome");
      model.addObject("message", "Welcome!");
      return model;
   }
}

ControllerClassNameHandlerMapping-servlet.xml

hello.jsp

<%@ page contentType="text/html; charset=UTF-8" %>


Hello World


   ${message}

welcome.jsp

<%@ page contentType="text/html; charset=UTF-8" %>


Welcome


   ${message}

Spring MVC简单URL处理程序映射

SimpleUrlHandlerMapping类分别显式地将URL映射到相应的控制器上



   
      
      
   

   
      
         
            welcomeController           
            helloController

对于/helloWorld.html请求，DispatcherServlet将请求转发到HelloController类
对于/welcome.html，DispatcherServlet会将请求转发给WelcomeController类
创建一个名称为 SimpleUrlHandlerMapping 的动态WEB项目。
在com.yiibai.springmvc 包下创建两个Java类HelloController和 WelcomeController。
在jsp子文件夹下创建两个视图文件：hello.jsp 和 welcome.jsp

HelloController.java

package com.yiibai.springmvc;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class HelloController extends AbstractController{

   @Override
   protected ModelAndView handleRequestInternal(HttpServletRequest request,
      HttpServletResponse response) throws Exception {
      ModelAndView model = new ModelAndView("hello");
      model.addObject("message", "Hello World!");
      return model;
   }
}

WelcomeController.java

package com.yiibai.springmvc;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class WelcomeController extends AbstractController{

   @Override
   protected ModelAndView handleRequestInternal(HttpServletRequest request,
      HttpServletResponse response) throws Exception {
      ModelAndView model = new ModelAndView("welcome");
      model.addObject("message", "Welcome!");
      return model;
   }
}

SimpleUrlHandlerMapping-servlet.xml



   
      
      
   

   
      
         
            welcomeController           
            helloController

hello.jsp

<%@ page contentType="text/html; charset=UTF-8" %>


Hello World


   ${message}

welcome.jsp

<%@ page contentType="text/html; charset=UTF-8" %>


Welcome


   ${message}

用户名：
密码：
地址：
是否订阅：
喜欢的框架/技术：
性别：
喜欢的数字：
所在国家：

用户名：	${username}
密码：	${password}
地址：	${address}
是否订阅：	${receivePaper}
喜欢的技术/框架：	<% String[] favoriteframeworks = (String[]) request.getAttribute("favoriteframeworks"); for (String framework : favoriteframeworks) { out.println(framework); } %>
性别：	${(gender=="M"? "男" : "女")}
喜欢的数字：	${favoriteNumber}
国家：	${country}

SpringMVC(四)

用户信息

提交用户信息 -

用户信息

提交用户信息 -

学生信息：

提交的学生信息：

学生信息

Submitted Student Information

${message}

${message}

${message}

${message}

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