Java calling DLL method summary

JNI and jnative are commonly used. Note: when Java calls DLL, corresponding processing must be done in DLL. Columns such as: method name must be_ java_ Package name_ Class name_ Method name

Calling DLL steps using JNI

Create a new Java project and put the DLL file under Src

The configuration changes to the native directory under the project environment JRE, pointing to Src

The project JDK must not use the JDK provided by eclipse, but use the JDK path installed by yourself

Create a new directory and class according to the directory order in DLL

Declare the same method as in DLL, and add the native keyword before the method (pay attention to the parameter type)

Write in the static block of code (no suffix):

Then write the main method and you can call it. If an error is reported, pay attention to the error information. The dependent DLL file may be missing

Simple package JNI

Simply encapsulate a class that calls DLL

The code can be downloaded in resource sharing and my code

The calling code (mainly the static block code has changed), and the dllutil code is downloaded from the share

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