最近公司项目要使用openfire，并对源码做一些修改，使用的openfire版本为官网目前最新版本4.2.3，网上资料较少，踩了很多坑，特此记录。

1.下载源码

http://www.igniterealtime.org/downloads/source.jsp

2.使用idea导入源码

File-New-Project from Existing Sources 导入解压后的源码

一路next

导入后的目录结构如下

设置Project SDK

打开File-Project Structure（本人使用的jdk1.8）

3.使用ant编译源码

　　a)打开右侧ant build菜单，点击+号，选择openfire-src-build下的build.xml文件

　　b)点击ant build菜单蓝色按钮（第四个）过滤

　　c)选择openfire后点击run按钮

4.配置运行参数

　　a)选择application

　　b)设置一些启动参数如图所示

　　c)启动（注意：此步会报一些错，下面一一解决）

Q:Error:java: 无效的源发行版: 1.9

A：此处选择8

Q：Error:(571, 21) java: 无法访问org.apache.tools.ant.Task

　　找不到org.apache.tools.ant.Task的类文件

A:缺少ant包

　　 1.将idea路径下或者自己下载的ant.jar复制到openfire_src>build->ib>ant目录和openfire_src>build->ib>merge目录下

　   2.打开project structure，选择libraries下的ant和merge，将刚才的ant.jar添加进去

　　   3.选择project structure-modules-tools模块，加入ant依赖

Q:启动成功，打开控制台页面报

HTTP ERROR 404

Problem accessing /login.jsp. Reason:

    /login.jsp

Powered by Jetty://

A:在web>WEB-INF>web.xml中添加

<jsp-config>    <taglib>        <taglib-uri>admin</taglib-uri>        <taglib-location>/WEB-INF/admin.tld</taglib-location>    </taglib></jsp-config>然后使用ant重新编译后启动

Q:再次启动后报500错误

HTTP ERROR 500

Problem accessing /setup/index.jsp. Reason:

    Server Error

Caused by:

java.lang.NullPointerExceptionat org.jivesoftware.admin.AdminConsole.getAppName(AdminConsole.java:105)at org.jivesoftware.openfire.admin.decorators.setup_jsp._jspService(setup_jsp.java:192)at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:595)at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)at org.eclipse.jetty.server.Dispatcher.include(Dispatcher.java:115)at com.opensymphony.module.sitemesh.filter.PageFilter.applyDecorator(PageFilter.java:156)at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:59)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)at org.jivesoftware.util.LocaleFilter.doFilter(LocaleFilter.java:73)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)at org.jivesoftware.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:49)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)at org.jivesoftware.admin.PluginFilter.doFilter(PluginFilter.java:226)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:215)at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)at org.eclipse.jetty.server.Server.handle(Server.java:499)at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)at java.lang.Thread.run(Thread.java:748)A:缺少配置文件　　1.将D:\IntelliJ IDEA 2017.3.3\workspace\openfire_src\src\resources\jar下的admin-sidebar.xml复制到D:\IntelliJ IDEA 2017.3.3\workspace\openfire_src\out\production\openfire_src　　2.将D:\IntelliJ IDEA 2017.3.3\workspace\openfire_src\src\i18n下的所有文件复制到D:\IntelliJ IDEA 2017.3.3\workspace\openfire_src\out\production\openfire_src

成功进入控制台!!!