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SpringMVC项目部署到CentOS7虚拟机问题及解决办法记录

it-bt 2021-06-08 21:01 原文

1.前言

计划将之前在Windows系统上练手做的项目部署到云服务器上，想先在本地虚拟机上测试一下是否可行，过程中发现很多问题，特此记录。还有问题未能解决，希望后面能有思路。
突然想到是否和数据库有关，可以在同一台虚拟机上安装mysql和应用，测试看看，是DB问题还是应用本身问题
感觉这个项目本身应该没有考虑上线到Linux服务器，加之我之前在做这个项目的时候对其加了修改，主要是对图片文件的地址进行了修改，因此可能有错误。先记录下来

环境：

  • Linux版本：CentOS Linux release 7.9.2009
  • apache-tomcat-9.0.41
  • openjdk version "1.8.0_292"

2.问题

2.1 缺少 tomcat-native

启动Tomcat之后，在浏览器输入IP后显示503，查看catalina.log发现报错：

就是说 缺少Tomcat Native librayr的支持，具体原因可以参考 因此需要安装 Tomcat Native library。

安装参考 Tomcat-APR/tomcat-native-1.2.23-src源码安装和配置 和 The Apache Tomcat Native library which allows using OpenSSL was not found on the java.library.path

二者都是参考官网 来安装 tomcat-native库：

安装tomcat-native 步骤

  1. 确认gcc、apr、apr-devel、apr-util 以及 JDK是否已经安装过，没有就需要安装
# 1.确认 gcc, 若已安装就会显示安装的版本
rpm -qa gcc
# gcc-4.8.5-28.el7_5.1.x86_64
#没有就安装

yum install gcc
# 2.确认 apr, 没有就 yum install gcc
rpm -qa apr
# 3.确认 apr-devel，没有就 yum install apr-devel
rpm -qa apr-devel
# 4.确认 apr-util， 没有就 yum install apr-util
rpm -qa apr-util
# 5. 确认 JDK，没有就 yum install -y java-1.8.0-openjdk
which java 
java -version

  1. 源码安装tomcat-native-1.2.23

    下载地址：官网

下载到 /opt 目录下，tar zxvf tomcat-native-1.2.23-src.tar.gz 解压 ，进入 tomcat-native-1.2.23-src/native ，然后参考官方给的模板执行：

./configure --with-apr=/usr/bin/apr-1-config \
            --with-java-home=/home/jfclere/JAVA/jdk1.7.0_80/ \
            --with-ssl=yes \
            --prefix=$CATALINA_HOME
  • --with-java-home：jdk的安装目录，笔者是 yum install -y java-1.8.0-openjdk 安装的，因此是 /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.292.b10-1.el7_9.x86_64 ；
  • --prefix：Tomcat安装目录
## 笔者的命令
./configure --with-apr=/usr/bin/apr-1-config \
            --with-java-home=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.292.b10-1.el7_9.x86_64 \
            --with-ssl=yes \
            --prefix=/usr/local/apache-tomcat-9.0.41

然后 编译安装 make && make install 成功后会看到如下的内容：

Libraries have been installed in:
   /usr/local/apache-tomcat-9.0.41/lib
   
If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,-rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

即库已经安装到之前 --prefix指定目录下的 lib子目录中，同时还需要以下操作：

修改 /usr/local/apache-tomcat-9.0.41/bin/catalina.sh ，在 文件末尾添加

LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/apache-tomcat-9.0.41/lib
export LD_LIBRARY_PATH

再在 /usr/local/apache-tomcat-9.0.41/conf/server.xml 配置 Tomcat Connector，将 protocol修改成如下内容：

<Connector port="80" protocol="org.apache.coyote.http11.Http11NioProtocol"
               connectionTimeout="20000"
               redirectPort="8443" />

重启Tomcat服务器 问题就解决了

2.2 无法访问自己的应用

发现自己的应用无法访问， 能访问 192.168.48.101，默认是Tomcat介绍页面，但是自己的应用 192.168.48.101:80/imooc_reader 就无法访问，报错为 500-内容服务器错误

javax.servlet.ServletException: Servlet.init() for servlet [springmvc] threw exception
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)
根本原因。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bookController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'categoryService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'categoryMapper' defined in file [/usr/local/apache-tomcat-9.0.41/webapps/imooc_reader/WEB-INF/classes/com/imooc/reader/mapper/CategoryMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [/usr/local/apache-tomcat-9.0.41/webapps/imooc_reader/WEB-INF/classes/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.apache.ibatis.session.Configuration.setShrinkWhitespacesInSql(Z)V
	org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:321)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
	org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
	org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:895)
	org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
	org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
	org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
	org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
	javax.servlet.GenericServlet.init(GenericServlet.java:158)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)

上面的错误是说：问题可能在 与数据库连接 的配置或者没有得到结果导致 依赖注入失败 ，可以从 Error creating bean with name 'sessionFactory' defined in file defined in [applicationContext.xml]中猜测

个人怀疑原因：

  1. 这个教学项目在编写的时候可能就没有考虑到上线Linux服务器，因此在Windows环境下开发没有考虑到两个系统的差别，比如文件分隔符等；
  2. 自己在编写的时候将在线图片资源全部修改为本地，可能导致读写有问题；

以后有时间再研究一下。

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