为什么我不能将此ROOT.war文件部署到远程Tomcat服务器中？ 当我重新启动Tomcat时，它将创建一个“空”的ROOT目录

Question

I have the following problem.

I am working on a Java web application and I am experiencing the following problem trying to deploy it on a remote Tomcat server (on a remote Linux machine).

So I take my ROOT.war file generated by maven compilation and I put into the webapp directory in my remote Tomcat server, this one: /usr/local/tomcat/myproject/webapps

where myproject should be a specific Tomcat instance because it contains:

[myuser@myserver myproject]$ ls
conf  lib  logs  server  shared  temp  webapps  work

So I do the following steps:

1) I stop Tomcat.

2) I enter into the webapps directory and here I remove the ROOT subdirectory.

3) I put my ROOT.war file into /usr/local/tomcat/myproject/webapps/ROOT/ directory.

4) I start Tomcat.

Now I expect that at start time Tomcat unpack the ROOT.war file into a new ROOT directory so my application should be deployed.

The problem is that after the Tomcat restart I have the new /usr/local/tomcat/myproject/webapps/ROOT/ directory but it doesn't contain my deployed application. This folder is almost empty, infact it contains only:

[myuser@myserver ROOT]$ ls -R
.:
WEB-INF

./WEB-INF:
classes

./WEB-INF/classes:
reports

./WEB-INF/classes/reports:

As you can see it only contains the WEB-INF directory withs some basic subfolder.

Why? What am I missing? Can I manually unpack my ROOT.war file in some way or is it not a good solution? How can I fix this issue?

Answer 1

Are you using Maven to build projects?If you use Maven to build a project, you can use the following configuration

 <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <port>8080</port>
                    <path>/</path>
                    <url>http://192.168.25.135:8080/manager/text</url>
                    <username>tomcat</username>
                    <password>tomcat</password>
                </configuration>
            </plugin>
        </plugins>
    </build>

Configuration file in Tomcat:

<tomcat-users>
    <role rolename="admin-gui"/>
    <role rolename="admin-script"/>
    <role rolename="manager-gui"/>
    <role rolename="manager-script"/>
    <role rolename="manager-jmx"/>
    <role rolename="manager-status"/>
    <user username="tomcat" password="tomcat" roles="manager-gui,manager-script,manager-jmx,manager-status,admin-script,admin-gui"/>
</tomcat-users> 

Use the Maven command:

mvn tomcat7:redeploy