我创建了一个Spring-MVC + Maven Web应用程序，因为我试图从控制器使用ModelMap将一些值传递给jsp，但是当我尝试在jsp中打印它们时，我无法看到这些值而是看到它们标记我写的内容以打印这些值。
for this I am using
Java 1.7
Spring 4.2.1
Apache Tomcat 8 web server
的pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.users</groupId>
<artifactId>UserManagement</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>UserManagement Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<jdk.version>1.7</jdk.version>
<spring.version>4.2.1.RELEASE</spring.version>
<jstl.version>1.2</jstl.version>
<servletapi.version>3.1.0</servletapi.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servletapi.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
<!-- <plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version> <configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
<wtpversion>2.0</wtpversion>
<wtpContextName>spring3</wtpContextName>
</configuration> </plugin> -->
</plugins>
<finalName>UserManagement</finalName>
</build>
</project>
控制器类
package com.user.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class UserController {
@RequestMapping("/abc")
public String hello1(ModelMap map) {
String hMessage = "Hello world from DaDheeChi";
String wMessage = "Welcome to Spring Coding!";
map.put("helloMessage", helloWorldMessage);
map.put("welcomeMessage", welcomeMessage);
return "hello1";
}
}
hello1.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>`enter code here`
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
${hMessage}
<br />
${wMessage}
</body>
</html>
的hello.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>
${helloMessage}
<br />
${welcomeMessage}
</body>
</html>
弹簧servlet.xml中
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=" http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<context:component-scan base-package="com.user.controller" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/views/jsps/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<mvc:annotation-driven />
</beans>
的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>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
的index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>DaDheeChi</title>
</head>
<body>
<a href="abc.html">Click here to read hello and welcome
message </a>
<br/>
<form action="abc.do" method="get">
<input type="submit" value="Click" />
</form>
</body>
</html>
答案 0 :(得分：0)
如果控制器返回＆＃34; hello1＆＃34;那么你只需要在视图中使用hello1.jsp，value就是RequestMapping值的名称，所以有＆＃39;点击＆＃39;主题之一？
答案 1 :(得分：0)
在addAttribute内使用put代替controller。
map.addAttribute("helloMessage", helloWorldMessage);
map.addAttribute("welcomeMessage", welcomeMessage);
并且不要忘记在jsp中启用EL。使用此代码启用它。
<%@ page isELIgnored="false" %>