jetty热部署,持久化session,jetty-maven插件配置

持久化session

　　背景

　　使用maven管理项目，使用jetty插件启动项目，虽然jetty是热部署的，但是没有配置的jetty并不算真正的热部署。因为在没有配置前每次热部署都会把session丢了。导致测试期间的数据丢失，重来一遍很麻烦。

　　本人使用的是jetty-maven-plugin,关于这个插件的一些基本配置就不说了，网上很多。

　　配置代码pom

<plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>7.4.3.v20110701</version>
                <configuration>
                    <!-- 指定端口时，要在setting文件中配置jetty插件 -->
                    <connectors>
                        <connector implementation="org.eclipse.jetty.server.bio.SocketConnector">
                            <port>9090</port>
                            <maxIdleTime>60000</maxIdleTime>
                        </connector>
                    </connectors>
                    <scanIntervalSeconds>1</scanIntervalSeconds>
                    <stopKey>foo</stopKey>
                    <stopPort>9999</stopPort>
                    <webAppConfig implementation="org.mortbay.jetty.plugin.JettyWebAppContext">
                    <!-- 一般是项目名称 -->
                        <contextPath>/study-ssh</contextPath>
                        <sessionHandler implementation="org.eclipse.jetty.server.session.SessionHandler">
                            <sessionManager implementation="org.eclipse.jetty.server.session.HashSessionManager">
                                <!-- 用于存放持久化的session路径 -->
                                <storeDirectory>doc/jetty-sessions</storeDirectory>
                                <idleSavePeriod>1</idleSavePeriod>
                            </sessionManager>
                        </sessionHandler>
                    </webAppConfig>
                </configuration>
            </plugin>

　　简单的测试代码

String str = (String) ActionContext.getContext().getSession().get("msg");
        System.out.println("str11111111111===="+str);
        ActionContext.getContext().getSession().put("msg", "Hello World from Session!");
        String stra = (String) ActionContext.getContext().getSession().get("msg");
        System.out.println("str33333333===="+stra);

　　启动jetty控制台输出

14-07-09 09:10:51.916:INFO::jetty-7.4.3.v20110701
2014-07-09 09:10:52.754:INFO::No Transaction manager found - if your webapp requires one, please configure one.
2014-07-09 09:10:52.933:INFO:/study-ssh:Set web app root system property: ‘webapp.root‘ = [E:\study\My-keple-workspace\study-ssh\src\main\webapp]
2014-07-09 09:10:52.934:INFO:/study-ssh:Initializing log4j from [classpath:log4j.properties]
2014-07-09 09:10:52.992:INFO:/study-ssh:Initializing Spring root WebApplicationContext
2014-07-09 09:10:54.489:INFO::started o.m.j.p.JettyWebAppContext{/study-ssh,file:/E:/study/My-keple-workspace/study-ssh/src/main/webapp/},file:/E:/study/My-keple-workspace/study-ssh/src/main/webapp/
2014-07-09 09:10:55.235:INFO::Started [email protected]:9090 STARTING
[INFO] Started Jetty Server
[INFO] Starting scanner at interval of 1 seconds.
记录日志
Hibernate: select docmodel0_.UUID as UUID0_, docmodel0_.CREATE_DATE as CREATE2_0_, docmodel0_.CREATE_USER_UUID as CREATE3_0_, docmodel0_.MEMO as MEMO0_, docmodel0_.SHOW_ID as SHOW5_0_, docmodel0_.SRC as SRC0_, docmodel0_.STATE as STATE0_, docmodel0_.TITLE as TITLE0_, docmodel0_.WORKFLOW_STATE as WORKFLOW9_0_ from TBL_DOC docmodel0_
退出
str11111111111====null
str33333333====Hello World from Session!

　　修改action类名后控制台

2014-07-09 09:14:10.058:INFO::No Transaction manager found - if your webapp requires one, please configure one.
2014-07-09 09:14:10.211:INFO:study-ssh:Set web app root system property: ‘webapp.root‘ = [E:\study\My-keple-workspace\study-ssh\src\main\webapp]
2014-07-09 09:14:10.211:INFO:study-ssh:Initializing log4j from [classpath:log4j.properties]
2014-07-09 09:14:10.260:INFO:study-ssh:Initializing Spring root WebApplicationContext
2014-07-09 09:14:11.531:INFO::started o.m.j.p.JettyWebAppContext{/study-ssh,file:/E:/study/My-keple-workspace/study-ssh/src/main/webapp/},file:/E:/study/My-keple-workspace/study-ssh/src/main/webapp/
[INFO] Restart completed at Wed Jul 09 09:14:12 CST 2014
记录日志
Hibernate: select docmodel0_.UUID as UUID0_, docmodel0_.CREATE_DATE as CREATE2_0_, docmodel0_.CREATE_USER_UUID as CREATE3_0_, docmodel0_.MEMO as MEMO0_, docmodel0_.SHOW_ID as SHOW5_0_, docmodel0_.SRC as SRC0_, docmodel0_.STATE as STATE0_, docmodel0_.TITLE as TITLE0_, docmodel0_.WORKFLOW_STATE as WORKFLOW9_0_ from TBL_DOC docmodel0_
退出
str11111111111====Hello World from Session!
str33333333====Hello World from Session!

　　可以看到jetty热部署后session还是能拿到的。

出处：http://www.cnblogs.com/Feeling-always-wrong/
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