spring:设置映射访问路径 或 xml配置访问路径 (spring mvc form表单)
2023-09-14 08:57:51 时间
项目hello,
在src/main/java下面建一个目录: charpter2
一.xml配置访问路径
web.xml
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>chapter2</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>chapter2</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
chapter2-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- HandlerMapping -->
<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
<!-- HandlerAdapter -->
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
<!-- ViewResolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!-- 处理器 -->
<bean name="/helloworld" class="chapter2.web.controller.HelloWorldController"/>
<!--
<bean name="/student" class="chapter2.web.controller.StudentController"/>
-->
</beans>
chapter2/HelloWorldController.java
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
public class HelloWorldController implements Controller {
public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse res) throws Exception {
// TODO Auto-generated method stub
ModelAndView mv = new ModelAndView();
//添加模型数据 可以是任意的POJO对象
mv.addObject("message", "Hello World!");
//设置逻辑视图名，视图解析器会根据该名字解析到具体的视图页面
mv.setViewName("hello");
return mv;
}
}
注意在 chapter2-servlet.xml中添加处理器配置:
<!-- 处理器 --> <bean name="/helloworld" class="chapter2.web.controller.HelloWorldController"/>
然后再WEB-INF/目录下新建jsp目录
web-inf/jsp/hello.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ 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>hello</title>
</head>
<body>
dddd
<br>
${message}
</body>
</html>
访问地址是: 项目地址/hello/helloworld
二。映射访问配置
首先配置文件有3: applicationContext.xml, web.xml, chapter2-servlet.xml
web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!--配置文件路径-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>chapter2</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>chapter2</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
chapter2-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 默认的注解映射的支持 -->
<mvc:annotation-driven />
<!-- 自动扫描的包名 -->
<context:component-scan base-package="chapter2.*" />
</beans>
applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- HandlerMapping -->
<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
<!-- HandlerAdapter -->
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
<!-- ViewResolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
r然后就是java代码:
chapter2/Student.java
public class Student {
private Integer id;
private Integer age;
private String name;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
chapter2/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="/assStudent", 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";
}
}
jsp文件
student.js
<%@ 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>
访问地址是: 项目地址/hello/student
访问地址：项目地址/hello/addStudent
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