SprigMVC基础测试

时间：2018-03-23 23:55:32 阅读：348 评论：0 收藏：0 [点我收藏+]

创建POJO

 1 package org.entity;
 2 
 3 
 4 public class User {
 5     private int id;
 6     private String userName;
 7     private String email;
 8     private Address address;
 9     public User(int id, String userName, String email, Address address) {
10         super();
11         this.id = id;
12         this.userName = userName;
13         this.email = email;
14         this.address = address;
15     }
16     @Override
17     public String toString() {
18         return "User [id=" + id + ", userName=" + userName + ", email=" + email + ", address=" + address + "]";
19     }
20     public User(int id, String userName, String email) {
21         super();
22         this.id = id;
23         this.userName = userName;
24         this.email = email;
25     }
26     public Address getAddress() {
27         return address;
28     }
29     public void setAddress(Address address) {
30         this.address = address;
31     }
32     public int getId() {
33         return id;
34     }
35     public void setId(int id) {
36         this.id = id;
37     }
38     public String getUserName() {
39         return userName;
40     }
41     public void setUserName(String userName) {
42         this.userName = userName;
43     }
44     public String getEmail() {
45         return email;
46     }
47     public void setEmail(String email) {
48         this.email = email;
49     }
50     public User() {
51 }    
52 }

 1 package org.entity;
 2 
 3 public class Address {
 4 private String provience;
 5 private String city;
 6 public String getProvience() {
 7     return provience;
 8 }
 9 public void setProvience(String provience) {
10     this.provience = provience;
11 }
12 public String getCity() {
13     return city;
14 }
15 public void setCity(String city) {
16     this.city = city;
17 }
18 @Override
19 public String toString() {
20     return "Address [provience=" + provience + ", city=" + city + "]";
21 }
22 }

配置web.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 3     xmlns="http://xmlns.jcp.org/xml/ns/javaee"
 4     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
 5     id="WebApp_ID" version="3.1">
 6 <!--配置DispatcherServlet  -->
 7 <!-- The front controller of this Spring Web application, responsible for handling all application requests -->
 8     <servlet>
 9         <servlet-name>springDispatcherServlet</servlet-name>
10         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
11         <!-- 配置DiapacherServlet初始化参数 -->
12         <init-param>
13             <param-name>contextConfigLocation</param-name>
14             <param-value>classpath:springmvc.xml</param-value>
15         </init-param>
16         <!--   -->
17         <load-on-startup>1</load-on-startup>
18     </servlet>
19 
20     <!-- Map all requests to the DispatcherServlet for handling -->
21     <servlet-mapping>
22         <servlet-name>springDispatcherServlet</servlet-name>
23         <url-pattern>/</url-pattern>
24     </servlet-mapping>
25 </web-app>

配置SpringMVC.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4     xmlns:context="http://www.springframework.org/schema/context"
 5     xmlns:mvc="http://www.springframework.org/schema/mvc"
 6     xmlns:task="http://www.springframework.org/schema/task"
 7     xmlns:aop="http://www.springframework.org/schema/aop"
 8     xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
 9         http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd
10         http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd
11         http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd
12         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
13         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
14         http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-4.0.xsd
15         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
16         http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
17 <!-- 配置自定义扫描得包 -->
18     <context:component-scan base-package="org.handler"></context:component-scan>
19 <!-- 配置视图解析器：如何把handler返回值解析为实际的物理视图 -->
20         <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
21         <property name="prefix" value="/WEB-INF/views/"></property>
22         <property name="suffix" value=".jsp"/>
23     </bean>
24 <!-- 自定义图 视图解析器   使用视图的名字来解析视图-->
25 <!-- 通过order属性来定义视图优先级 order值越小优先级越高-->
26     <bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
27     <property name="order" value="100"></property>
28     </bean>
29     <!-- 配置直接转发的页面 -->
30     <mvc:view-controller path="/success" view-name="success"/>
31     <!-- 在实际开发中需要配置mvc:annotation-driven标签  -->
32     <mvc:annotation-driven></mvc:annotation-driven>
33 <!-- 配置国际化资源文件 -->
34 <bean id="messageSource"
35         class="org.springframework.context.support.ResourceBundleMessageSource">
36         <property name="basename" value="i18n"></property>
37         </bean>
38 
39 </beans>

编写jsp

　　index.jsp

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 5 <html>
 6 <head>
 7 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 8 <title>Insert title here</title>
 9 </head>
10 <body>
11     <a href="helloword">Hello Word</a>
12     <br>
13     <form action="testUser">
14         id:<input type="text" name="id"/>
15         <br>
16         userName:<input type="text" name="userName"/>
17         <br>
18         email:<input type="text" name="email"/>
19         <br>
20         provience:<input type="text" name="address.provience"/>
21         <br>
22         city:<input type="text" name="address.city"/>
23         <input type="submit" value="提交"/>
24     </form>
25     <br/>
26     <a href="testServletAPI">testServletAPI</a>
27     <br>
28     <a href="testModelAndView">testModelAndView</a>
29     <br>
30     <a href="testMap">test Map</a>
31     <br>
32     <a href="testSessionAttributes">testSessionAttributes</a>
33     
34     <br><br>
35     <!-- 
36         模拟修改操作
37         1.原始数据为  1 tom @tom.com
38         2.名字不能被修改
39         3.表单回显，模拟操作直接在表单填写对应的属性值
40      -->
41     <form action="testModelAttribute">
42         <input type="hidden" name = "id" value="1"/>
43         email:<input type="text" name ="email" value="@tom.com"/>
44         <input type="submit" value="提交"/>
45     </form>
46     <br><br>
47     
48     <a href="testViewSourceAndViewResolver">testViewSourceAndViewResolver</a>
49     
50         <br><br>
51     国际化：
52     <br>
53     <fmt:message key="i18n.username"></fmt:message>
54     <br>
55     <fmt:message key="i18n.password"></fmt:message>
56     
57     <br><br>
58     <a href="testView">testView</a>
59     <br><br>
60     <a href=testRedirect>testRedirect</a>
61 </body>
62 </html>

　 success.jsp

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 5 <html>
 6 <head>
 7 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 8 <title>Insert title here</title>
 9 </head>
10 <body>
11     hello SpringMVC
12     <br>
13     time: ${requestScope.time}
14     <br>
15     name: ${requestScope.names}
16     <br><br>
17     request user: ${requestScope.user}
18     <br>
19     session user: ${sessionScope.user}
20     <br><br>
21     request email: ${requestScope.email}
22     <br>
23     session email: ${sessionScope.email}
24     <br>
25     <br><br>
26     国际化：
27     <br>
28     <fmt:message key="i18n.username"></fmt:message>
29     <br>
30     <fmt:message key="i18n.password"></fmt:message>
31 </body>
32 </html>

编写Handler

  1 package org.handler;
  2 
  3 import java.io.IOException;
  4 import java.io.Writer;
  5 import java.util.Arrays;
  6 import java.util.Date;
  7 import java.util.HashMap;
  8 import java.util.Map;
  9 
 10 import javax.servlet.http.HttpServletRequest;
 11 import javax.servlet.http.HttpServletResponse;
 12 import javax.xml.ws.soap.MTOM;
 13 
 14 import org.apache.catalina.startup.Tomcat;
 15 import org.apache.taglibs.standard.lang.jstl.test.beans.PublicInterface2;
 16 import org.entity.User;
 17 import org.omg.PortableInterceptor.SUCCESSFUL;
 18 import org.springframework.stereotype.Controller;
 19 import org.springframework.validation.Errors;
 20 import org.springframework.web.bind.annotation.ModelAttribute;
 21 import org.springframework.web.bind.annotation.RequestMapping;
 22 import org.springframework.web.bind.annotation.RequestParam;
 23 import org.springframework.web.bind.annotation.SessionAttributes;
 24 import org.springframework.web.servlet.ModelAndView;
 25 import com.sun.net.httpserver.Authenticator.Success;
 26 import com.sun.org.apache.bcel.internal.generic.NEW;
 27 import com.sun.org.apache.regexp.internal.recompile;
 28 //@SessionAttributes(value={"user"},types={String.class})
 29 @Controller
 30 public class SpringMVC {
 31 public    static String SUCCESS = "success";
 32     /**
 33      * 使用@RequestMapping注解来映射请求的URL
 34      * @return
 35      */
 36 @RequestMapping("/helloword")
 37 public String testhello() {
 38     System.out.println("helloword");
 39     return "success";    
 40 }
 41 /**
 42  * 支持提交pojo  会根据name与pojo属性进行匹配 支持级联属性
 43  * @param user
 44  * @return
 45  */
 46 @RequestMapping("/testUser")
 47 public String  testUser(User user) {
 48     System.out.println("User:"+user.toString());
 49     return "success";
 50 }
 51 /**
 52  * 支持使用servlet原生api
 53  * HttpServletReqyest
 54  * HttpServletResponse
 55  * HttpSession
 56  * java.security.Prinipal
 57  * Locale
 58  * InputStream
 59  * OutputStream
 60  * Reader
 61  * Writer
 62  * @throws IOException 
 63  */
 64 @RequestMapping("testServletAPI")
 65 public String testServletAPI(HttpServletRequest request,
 66         HttpServletResponse response,
 67         Writer out) throws IOException {
 68     
 69     System.out.println("testServletAPI:"+request+"\n"+response+"\n"+out);
 70     out.write("hello writer");
 71     out.write(1111);
 72     return "success";
 73 }
 74 /**
 75  * ModelAndView
 76  * Map及Model
 77  * @sessionAttributes
 78  * @ModelAttribute
 79  * 目标方法的返回值可以是ModelAndView类型其中包含视图和模型信息
 80  */
 81 @RequestMapping("testModelAndView")
 82 public ModelAndView testModelAndView() {
 83     String viewName="success";
 84     ModelAndView modelAndView = new ModelAndView(viewName);
 85     modelAndView.addObject("time",new Date());
 86     return modelAndView;
 87 }
 88 /**
 89  * 目标方法可以添加map（也可以是Model类型或ModelMap类型）类型参数
 90  * @param map
 91  * @return
 92  */
 93 @RequestMapping("testMap")
 94 public String testMap(Map<String,Object> map) {
 95     map.put("names",Arrays.asList("tom","jerry","mike"));
 96     return "success";
 97 }
 98 /**
 99  * map 默认在request域里不会装进Session域
100  * 用sessionAttributes在controller类上做注解使属性值进入session域
101  * 其括号内可放键、值  如上设置
102  * @SessionAttributes(value={"user"},types={String.class})
103  * 表示将   键 为"user" 或  值为String类型的   键值对放入session域
104  * 注意 ：该注解只能放在类上
105  */
106 
107 @RequestMapping("testSessionAttributes")
108 public String  testSessionAttributes(Map<String, Object> map) {
109     User user = new User(121,"tom","@qwqx.com");
110     map.put("user", user);
111     map.put("email", "@myemail.com");
112     return  SUCCESS;
113 }
114 /**@RequestMapping("testModelAttribute")
115  * 如果数据库中的数据进行修改操作，默认的表单提交会new一个对象传回后台
116  * 如果规定某些属性无法修改，在表单里我们是不需要列出来的，而表单里我们不对属性进行赋值，
117  * 会造成对象属性为null，在写入数据库时造成麻烦，
118  * 当然我们可以用hidden赋值，但如果是私密属性又会有麻烦
119  * 在这里我们可以选择先从数据库插叙获取到对象，传送到页面，表单提交只是对属性值作出更改，而不是新建对象
120  */
121 @RequestMapping("testModelAttribute")
122 public String testModelAttribute(@ModelAttribute("user")User user) {
123     System.out.println("修改："+user);
124     return SUCCESS;
125 }
126 /**
127  * 由@ModelAttribute标记的方法会在每个目标方法执行之前被SpringMVC调用
128  * 在ModelAttribute修饰的方法中，放入到Map时的键需要和目标方法参数类型的第一个字母小写的字符串一致
129  * 可以在目标方法的参数上用@ModelAttribute("user") 用于指定获取对象时需要查找的键
130  * testModelAttribute(@ModelAttribute("user")User user)
131  */
132 @ModelAttribute
133 public void getUser(@RequestParam(value="id",required=false) Integer  id,
134                     Map<String, Object> map) {
135     if(id!=null) {
136 //        假设user为数据库查询出来的对象
137         User user = new User(2,"Tom", "@tom.com");
138         System.out.println("数据库查询出来的对象："+user.toString());
139         map.put("user",user);
140     }
141 }
142 @RequestMapping("testViewSourceAndViewResolver")
143 public String testViewSourceAndViewResolver() {
144     
145     return SUCCESS;
146 }
147 @RequestMapping("testView")
148 public String  testView() {
149     System.out.println("testView");
150     return "helloView";
151 }
152 @RequestMapping("testRedirect")
153 public String testRedirect() {
154     System.out.println("testRedirect");
155     return "redirect:/index.jsp";
156 }
157 }

自定义视图测试：

 1 package org.views;
 2 
 3 import java.util.Date;
 4 import java.util.Map;
 5 
 6 import javax.servlet.http.HttpServletRequest;
 7 import javax.servlet.http.HttpServletResponse;
 8 
 9 import org.springframework.stereotype.Component;
10 import org.springframework.web.servlet.View;
11 
12 @Component
13 public class HelloView implements View{
14 
15     @Override
16     public String getContentType() {
17         return "text/html";
18     }
19 
20     @Override
21     public void render(Map<String, ?> arg0, HttpServletRequest arg1, HttpServletResponse arg2) throws Exception {
22     arg2.getWriter().print("hello view .time"+new Date());    
23     }
24 
25 }

SprigMVC基础测试

原文：https://www.cnblogs.com/the-wang/p/8108095.html

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