SpringMVC和JSP-无法将数据从控制器传递到JSP
我有一个支持SpringMVC的GWT应用程序。我定义了一个spring控制器: 导入javax.servlet.http.HttpServletRequestSpringMVC和JSP-无法将数据从控制器传递到JSP,spring,jsp,gwt,Spring,Jsp,Gwt,我有一个支持SpringMVC的GWT应用程序。我定义了一个spring控制器: 导入javax.servlet.http.HttpServletRequest import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; @C
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class IndexController {
@RequestMapping("/")
public ModelAndView index(HttpServletRequest request) {
ModelAndView result = new ModelAndView("index");
result.addObject("message", "hello, world!");
return result;
}
}
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
此控制器返回简单的基于jsp的视图:
<%@page pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Они с нами</title>
<link href="<%=getServletContext().getContextPath()%>/style/reset.css" rel="stylesheet" type="text/css"></link>
<link href="<%=getServletContext().getContextPath()%>/style/index.css" rel="stylesheet" type="text/css"></link>
<link href="<%=getServletContext().getContextPath()%>/style/common.css" rel="stylesheet" type="text/css"></link>
<script type="text/javascript" language="javascript" src="<%=getServletContext().getContextPath()%>/stub/stub.nocache.js"></script>
</head>
<body>
<p style="display:none">${message}</p>
</body>
</html>
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
Они с нами
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
URL映射和重定向到视图可以正常工作,但是
<p style="display:none">${message}</p>
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
不起作用-它只打印${message}
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
这是我的web.xml:
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
字符编码滤波器
org.springframework.web.filter.CharacterEncodingFilter
编码
UTF-8
强制编码
真的
字符编码滤波器
/*
springMvc
org.springframework.web.servlet.DispatcherServlet
1.
springMvc
/索引/*
索引/
以及我的springMvc-servlet.xml:
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/jsp/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<context:component-scan base-package="com.onisnami.site.server.controllers"/>
</beans>
/WEB-INF/jsp/
.jsp
还有pom.xml:
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
<?xml version="1.0" encoding="UTF-8"?>
<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">
<!-- POM file generated with GWT webAppCreator -->
<modelVersion>4.0.0</modelVersion>
<groupId>com.onisnami</groupId>
<artifactId>onisnami-site</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>GWT Maven Archetype</name>
<properties>
<!-- Convenience property to set the GWT version -->
<gwtVersion>2.1.1</gwtVersion>
<!-- GWT needs at least java 1.5 -->
<maven.compiler.source>1.6</maven.compiler.source>
<maven.compiler.target>1.6</maven.compiler.target>
<webappDirectory>${project.build.directory}/${project.build.finalName}</webappDirectory>
<org.springframework.version>3.0.5.RELEASE</org.springframework.version>
</properties>
<dependencies>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwtVersion}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwtVersion}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.googlecode.gwt.inject</groupId>
<artifactId>gin</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>net.customware.gwt.dispatch</groupId>
<artifactId>gwt-dispatch</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>com.google.inject</groupId>
<artifactId>guice</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>com.google.inject.extensions</groupId>
<artifactId>guice-servlet</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
</dependencies>
<build>
<!-- Generate compiled stuff in the folder used for developing mode -->
<outputDirectory>${webappDirectory}/WEB-INF/classes</outputDirectory>
<plugins>
<!-- GWT Maven Plugin -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.1.0-1</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<!-- <goal>test</goal>
<goal>i18n</goal>
<goal>generateAsync</goal> -->
</goals>
</execution>
</executions>
<!-- Plugin configuration. There are many available options, see gwt-maven-plugin
documentation at codehaus.org -->
<configuration>
<runTarget>stub.html</runTarget>
<hostedWebapp>${webappDirectory}</hostedWebapp>
</configuration>
</plugin>
<!-- Copy static web files before executing gwt:run -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>exploded</goal>
</goals>
</execution>
</executions>
<configuration>
<webappDirectory>${webappDirectory}</webappDirectory>
</configuration>
</plugin>
</plugins>
</build>
</project>
4.0.0
com.onisnami
奥尼斯那米遗址
战争
1.0-快照
GWT Maven原型
2.1.1
1.6
1.6
${project.build.directory}/${project.build.finalName}
3.0.5.1发布
com.google.gwt
gwt servlet
${gwtVersion}
运行时
com.google.gwt
gwt用户
${gwtVersion}
假如
朱尼特
朱尼特
4.7
测试
com.googlecode.gwt.inject
杜松子酒
1
net.customware.gwt.dispatch
gwt调度
1.1.0
com.google.inject
圭斯
2
com.google.inject.extensions
guice servlet
2
亚马逊网站
aws java sdk
1.1.1
org.springframework
SpringWebMVC
${org.springframework.version}
javax.servlet
jstl
1.2
塔格利布
标准
1.1.2
${webappDirectory}/WEB-INF/classes
org.codehaus.mojo
GWTMaven插件
2.1.0-1
编译
stub.html
${webappDirectory}
org.apache.maven.plugins
maven战争插件
2.1.1
编译
爆炸了的
${webappDirectory}
A花了一整天寻找解决方案,但仍然不起作用。请帮帮我。
谢谢找到了解决方案:
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
需要添加以下行:
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
<%@page contentType="text/html;charset=UTF-8" language="java" %>
<%@page isELIgnored="false" %>
在JSP文件的开头,您是正确的,因为您正在定义表达式
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
${Anything between this is expression}
你需要包括
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>
<%@page isELIgnored="false" %>
IsAligned为false,即将表达式考虑在内。查看为什么使用/style/reset.css而不是?
<web-app>
<!-- Reads request input using UTF-8 encoding -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/index/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index/</welcome-file>
</welcome-file-list>
</web-app>