Java 单独war文件中Portlet之间的共享bean
我正在开发一个“用户设置portlet”,用户可以在其中影响多个其他portlet的搜索行为。我希望通过共享bean来实现这一点。所有Portlet都处于不同的战争中,我宁愿避免将所有战争都放在一个ear中并使用父应用程序上下文,因此Portlet的部署可以自主进行,但在找到有关如何进行部署的信息方面运气不佳 我一直在尝试部署一个包含战争信息的ear文件,但经过数小时的努力,我还没有接近解决我的问题 目录结构如下所示: portlets |--- ear | \--- src/main/application/META-INF/application.xml | |--- jar (contains UserSettings.java) | \--- src/main/resources/beanRefContext.xml | \--- src/main/resources/services-context.xml | \--- src/main/java/com/foo/application/UserSettings.java | |--- messagehistory (war, portlet 1) | \--- [...] | |--- settings (war, portlet 2) | \--- [...] | \--- pom.xmlJava 单独war文件中Portlet之间的共享bean,java,spring,spring-mvc,portlet,Java,Spring,Spring Mvc,Portlet,我正在开发一个“用户设置portlet”,用户可以在其中影响多个其他portlet的搜索行为。我希望通过共享bean来实现这一点。所有Portlet都处于不同的战争中,我宁愿避免将所有战争都放在一个ear中并使用父应用程序上下文,因此Portlet的部署可以自主进行,但在找到有关如何进行部署的信息方面运气不佳 我一直在尝试部署一个包含战争信息的ear文件,但经过数小时的努力,我还没有接近解决我的问题 目录结构如下所示: portlets |--- ear | \--- src/main/a
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<context-param>
<param-name>parentContextKey</param-name>
<param-value>ear.context</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<filter>
<filter-name>springFilter</filter-name>
<filter-class>
org.springframework.web.filter.RequestContextFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>springFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet>
<servlet-name>ViewRendererServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.ViewRendererServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ViewRendererServlet</servlet-name>
<url-pattern>/WEB-INF/servlet/view</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
package com.foo;
import com.foo.event.UserSettings;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.EventRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;
import org.springframework.web.portlet.bind.annotation.ActionMapping;
import javax.portlet.Event;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.portlet.bind.annotation.EventMapping;
@Controller
@RequestMapping("VIEW")
public class ViewHistory {
private UserSettings userSettings = new UserSettings();
@ModelAttribute("userSettings")
public UserSettings createUserSettings(Model model) {
return userSettings;
}
@RequestMapping
public String doSearch(Model model) {
return "view";
}
@ActionMapping(params = "action=search")
public void searchAction(
Model model,
ActionRequest request, ActionResponse response,
@ModelAttribute("userSettings") UserSettings userSettings,
BindingResult bindingResult, SessionStatus status)
{
// do something
}
/**
* Spring calls this whenever an event is received.
* Can be limited to certain event.
*/
@EventMapping
public void handleEvent(EventRequest request) {
Event event = request.getEvent();
if (event.getName().equals("UserSettings")) {
userSettings = (UserSettings)event.getValue();
}
}
}
但是当我部署ear时,我得到了java.lang.IllegalStateException:没有为作用域“session”注册作用域
这是history portlet的控制器,用户可以在其中搜索消息历史记录,并受settings portlet的限制。设置portlet的控制器是相同的
package com.foo;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletSession;
import javax.servlet.ServletContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;
import org.springframework.web.portlet.bind.annotation.ActionMapping;
import com.foo.application.UserSettings;
import javax.annotation.PostConstruct;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.ServletContextAware;
@Controller
@SessionAttributes({"searchQuery", "searchResults"})
@RequestMapping("VIEW")
public class ViewHistory extends ContextLoader implements ServletContextAware {
private UserSettings userSettings;
private ServletContext servletContext;
@Override
public void setServletContext(ServletContext servletContext) {
this.servletContext = servletContext;
}
@PostConstruct
public void init() {
ApplicationContext ctx = loadParentContext(servletContext);
servletContext.setAttribute(LOCATOR_FACTORY_KEY_PARAM, "ear.context");
userSettings = (UserSettings) ctx.getBean("userSettings");
}
@ModelAttribute("userSettings")
public UserSettings createUserSettings(Model model) {
model.addAttribute(userSettings);
}
@RequestMapping
public String doSearch(Model model, PortletSession portletSession) {
return "view";
}
@ActionMapping(params = "action=search")
public void searchAction(
Model model,
ActionRequest request, ActionResponse response,
BindingResult bindingResult, SessionStatus status)
{
// do nothing
}
}
两次战争的web.xml
文件(它们相同)如下所示:
portlets
|--- ear
| \--- src/main/application/META-INF/application.xml
|
|--- jar (contains UserSettings.java)
| \--- src/main/resources/beanRefContext.xml
| \--- src/main/resources/services-context.xml
| \--- src/main/java/com/foo/application/UserSettings.java
|
|--- messagehistory (war, portlet 1)
| \--- [...]
|
|--- settings (war, portlet 2)
| \--- [...]
|
\--- pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<context-param>
<param-name>parentContextKey</param-name>
<param-value>ear.context</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<filter>
<filter-name>springFilter</filter-name>
<filter-class>
org.springframework.web.filter.RequestContextFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>springFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet>
<servlet-name>ViewRendererServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.ViewRendererServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ViewRendererServlet</servlet-name>
<url-pattern>/WEB-INF/servlet/view</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
package com.foo;
import com.foo.event.UserSettings;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.EventRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;
import org.springframework.web.portlet.bind.annotation.ActionMapping;
import javax.portlet.Event;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.portlet.bind.annotation.EventMapping;
@Controller
@RequestMapping("VIEW")
public class ViewHistory {
private UserSettings userSettings = new UserSettings();
@ModelAttribute("userSettings")
public UserSettings createUserSettings(Model model) {
return userSettings;
}
@RequestMapping
public String doSearch(Model model) {
return "view";
}
@ActionMapping(params = "action=search")
public void searchAction(
Model model,
ActionRequest request, ActionResponse response,
@ModelAttribute("userSettings") UserSettings userSettings,
BindingResult bindingResult, SessionStatus status)
{
// do something
}
/**
* Spring calls this whenever an event is received.
* Can be limited to certain event.
*/
@EventMapping
public void handleEvent(EventRequest request) {
Event event = request.getEvent();
if (event.getName().equals("UserSettings")) {
userSettings = (UserSettings)event.getValue();
}
}
}
上下文配置位置
/WEB-INF/applicationContext.xml
parentContextKey
语境
org.springframework.web.context.ContextLoaderListener
org.springframework.web.context.request.RequestContextListener
弹簧过滤器
org.springframework.web.filter.RequestContextFilter
弹簧过滤器
/*
调度员
org.springframework.web.servlet.DispatcherServlet
2.
ViewRenderServlet
org.springframework.web.servlet.viewRenderServlet
调度员
*.htm
ViewRenderServlet
/WEB-INF/servlet/view
30
index.jsp
结果表明,仅使用Spring的@EventMapping
注释进行简单的JSR286事件处理非常简单。不需要ear,也不需要父应用程序上下文。我只是将我的UserSettings.java
放在一个单独的jar
项目中,并将其作为对war
s的依赖项
search
portlet的控制器如下所示:
portlets
|--- ear
| \--- src/main/application/META-INF/application.xml
|
|--- jar (contains UserSettings.java)
| \--- src/main/resources/beanRefContext.xml
| \--- src/main/resources/services-context.xml
| \--- src/main/java/com/foo/application/UserSettings.java
|
|--- messagehistory (war, portlet 1)
| \--- [...]
|
|--- settings (war, portlet 2)
| \--- [...]
|
\--- pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<context-param>
<param-name>parentContextKey</param-name>
<param-value>ear.context</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<filter>
<filter-name>springFilter</filter-name>
<filter-class>
org.springframework.web.filter.RequestContextFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>springFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet>
<servlet-name>ViewRendererServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.ViewRendererServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ViewRendererServlet</servlet-name>
<url-pattern>/WEB-INF/servlet/view</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
package com.foo;
import com.foo.event.UserSettings;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.EventRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;
import org.springframework.web.portlet.bind.annotation.ActionMapping;
import javax.portlet.Event;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.portlet.bind.annotation.EventMapping;
@Controller
@RequestMapping("VIEW")
public class ViewHistory {
private UserSettings userSettings = new UserSettings();
@ModelAttribute("userSettings")
public UserSettings createUserSettings(Model model) {
return userSettings;
}
@RequestMapping
public String doSearch(Model model) {
return "view";
}
@ActionMapping(params = "action=search")
public void searchAction(
Model model,
ActionRequest request, ActionResponse response,
@ModelAttribute("userSettings") UserSettings userSettings,
BindingResult bindingResult, SessionStatus status)
{
// do something
}
/**
* Spring calls this whenever an event is received.
* Can be limited to certain event.
*/
@EventMapping
public void handleEvent(EventRequest request) {
Event event = request.getEvent();
if (event.getName().equals("UserSettings")) {
userSettings = (UserSettings)event.getValue();
}
}
}
…对于设置
portlet:
package com.foo;
import com.foo.event.UserSettings;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;
import org.springframework.web.portlet.bind.annotation.ActionMapping;
import javax.xml.namespace.QName;
import org.springframework.web.bind.annotation.ModelAttribute;
@Controller
@RequestMapping("VIEW")
public class ViewSettings {
private QName qname = new QName("http:foo.com/usersettings", "UserSettings");
@ModelAttribute
public UserSettings createUserSettings(Model model) {
return new UserSettings();
}
@ActionMapping(params = "action=search")
public void searchAction(
Model model,
ActionRequest request, ActionResponse response,
@ModelAttribute("userSettings") UserSettings userSettings,
BindingResult bindingResult, SessionStatus status)
{
// as soon as an action is triggered (save button is pressed or
// whatever), send the modified UserSettings instance as an
// event to the search portlet (actually any portlet, but I
// only have one that will read events).
response.setEvent(qname, userSettings);
}
@RequestMapping
public String doView(Model model) {
return "view";
}
}