利用Cobol程序中的Java API

Question

We have some COBOL programs running on our mainframe and we need one of those to communicate with our back end vault through a Java API. Is there any way a Cobol program can invoke the Java program?

Would it be possible to use a Web Service from Cobol? How would I integrate a Cobol program with anything else?

Answer 1

不知道这是否是您找到信息的地方，但此COBOL白皮书列表包含有关COBOL / Java集成的部分，包括一些特定于Enterprise COBOL的部分。

Answer 2

Found this:

A COBOL program can interoperate with JAVA.

To achieve inter-language interoperability with Java™, you must follow certain rules and guidelines for: Using services in the Java Native Interface (JNI) Coding data types Compiling your COBOL programs You can invoke methods that are written in Java from COBOL programs, and you can invoke methods that are written in COBOL from Java programs. For basic Java object capabilities, you can use COBOL object-oriented language. For additional Java capabilities, you can call JNI services.

Because Java programs might be multi-threaded and use asynchronous signals, compile your COBOL programs with the THREAD option.

Also, we are using Cobol Enterprise, which has support for web services. The integration shall then be done using the WS functionality found in Cobol Enterprise.

Answer 3

我不用COBOL编写代码，但在我的工作中，我们有一个MVS系统，程序员可以从COBOL输出XML / Web服务。

Answer 4

I'm guessing that any Java integration would be a vendor extension. What compiler are you using?

If your Cobol program is running as a batch job, you might be able to split it into two batch jobs, one that writes all of the queries for Java land into a file, and one that uses the answers from Java land. Run a Java program between them that reads the query file and writes out an answers file.

Answer 5

This is a shot in the dark but Dr Dobbs has a recent article on Cobol and Java ( see here ). On page 3, they mention running Cobol on the JVM with some vendor info. That is quite a departure from your question but might lead to some new resources on the web.

Answer 6

For the AS/400 there is the IBM Java toolbox. Check the java programming section in the infocenter.

Answer 7

微焦点确实允许COBOL和Java进行交互，但是为了满足您的需求，您需要使用名为OO COBOL的微焦点衍生物。