采用：<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>设置，来使用form文本框
我的项目名称是hello, 在src/main/java下面建了一个目录chapter2: src/main/java/chapter2/
以学习姓名，年龄，id号为例。
Student.java
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
import org.springframework.stereotype.Controller;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
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 "student_result";
}
}
这里的第一个服务方法student()，我们已经在ModelAndView对象中传递了一个名称为“command”的空对象，因为如果要在JSP中使用<form:form>标签，spring框架需要一个名称为“command”的对象文件。当调用student()方法时，它返回student.jsp视图。
第二个服务方法addStudent()将在URL HelloWeb/addStudent 上的POST方法调用。将根据提交的信息准备模型对象。 最后，将从服务方法返回“result”视图，这将渲染result.jsp 页面。
student.jsp的代码如下所示
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Spring MVC表单处理</title> </head> <body> <h2>Student Information</h2> <form:form method="post" action="/hello/addStudent"> <table> <tr> <td><form:label path="name">姓名:</form:label></td> <td><form:input path="name"/></td> </tr> <tr> <td><form:label path="age">年龄</form:label></td> <td><form:input path="age"/></td> </tr> <tr> <td><form:label path="id">编号</form:label></td> <td><form:input path="id"/></td> </tr> <tr> <td colspan="2"> <input type="submit" value="提交表单"/> </td> </tr> </table> </form:form> </body> </html>
student_result.jsp
<%@ page contentType="text/html; charset=UTF-8" %>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ page isELIgnored="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>spring mvc表单处理</title>
</head>
<body>
<h2>提交的学生信息</h2>
<table>
<tr>
<td>名称:</td>
<td>${name}</td>
</tr>
<tr>
<td>年龄:</td>
<td>${age}</td>
</tr>
<tr>
<td>编号:</td>
<td>${id}</td>
</tr>
</table>
</body>
</html>
注意加入jstl标签库，否则不会解析的。
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <%@ page isELIgnored="false" %>