Java WebApp and tomcat context.xml

Question

I build webApp . When I run app from Eclipse everything work OK. Now I build WAR file, put in tomcat root, andI want to all my system property put in context.xml in tomcat. Then, when app is start, that values from context.xml is read and use in app. Problem is I don't know how to get values from context.xml in my webapp? This is context:

<?xml version="1.0" encoding="UTF-8"?>
<Context path="" docBase="fileupload.war" privileged="true"    antiResourceLocking="false" antiJARLocking="false">
    <Resource 
        mail.smtp_server = "127.0.0.1"
        mail.smtp_username = "[email protected]"
        mail.mailTo = "[email protected]"
        rootFolder = "D:/project/"
        rootFolderBackup = "D:/project/Backup/"
     />

Here I want to get a values from context.xml :

@RequestMapping(value="api/files")
public class FileController {

final static Logger logger = Logger.getLogger(FileController.class);
@Autowired
ApplicationContext applicationContext;

private String mailTo;
private String sender;
private String rootFolder = "";
private String rootFolderBackup = "";   

@PostConstruct
private void init(){

        try {
            InitialContext ic = new InitialContext();
            Context xmlContext = (Context) ic.lookup("java:comp/env"); // thats everything from the context.xml and from the global configuration
            DataSource myDatasource = (DataSource) xmlContext.lookup("rootFolder");
        } catch (NamingException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

}

This is common error :

Name [rootFolder] is not bound in this Context. Unable to find [rootFolder].

I try few solution which I found on web but not working... My context.xml file is in C:\tomcat-7.0\conf\Catalina\localhost , and war file is in C:\tomcat-7.0\webapps

Gimby · Accepted Answer · 2015-06-23 16:01:45Z

2

If you want to define application properties you should probably use Environment variables instead. Ex you can set a variable in any context.xml like this:

<Environment name="PROPERTIES_FILE" override="false" type="java.lang.String" value="C:/path/to/propfile.properties" />
<!--define more variables here -->

and then in your application you can read those environment properties from JNDI like this.

initCtx = new InitialContext();
String path = (String) initCtx.lookup("java:comp/env/PROPERTIES_FILE");
// fetch more variables here

3 Comments

zexco2 Over a year ago

I put Environment in Context but now is error : Name [PROPERTIES_FILE] is not bound in this Context. Unable to find [PROPERTIES_FILE]. , in java init() I put your code InitialContext initCtx = new InitialContext(); String path = (String) initCtx.lookup("java:comp/env/PROPERTIES_FILE");

Gimby Over a year ago

Can't say what is wrong in your particular case, "works on my machine" and that is how it is documented. Possibly you are putting the context.xml in the wrong place.

zexco2 Over a year ago

Where to put Environment , in context.xml from tomcat or in mywebapp.xml(which in tomcat / conf/catalina/localhost folder ?

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