Use JMetrix to confuse and compress the Java library
Use JMetrix to confuse and compress the Java library
Introduction:
When developing and publishing Java libraries, code confusion and compression optimization often need to be performed to protect intellectual property rights and improve code execution efficiency.JMETRIX is a powerful Java library confusion and compression optimization tool that can help developers confuse the Java class library and use various optimization technologies to reduce the size of the code and improve the execution efficiency.
JMetrix Main features:
1. Code confusion: JMetRix provides a powerful code confusion that confuses the names, methods and field names in the Java class library to make it difficult to understand and analyze.
2. Optimist: JMETRIX also has a built -in optimizer that can optimize the Java bytecode, eliminate useless instructions, merge duplicate instructions, and use more efficient instructions to replace the original instructions to improve execution speed.
3. Dependent analysis: JMETRIX can analyze the dependency relationship of the Java class library, help developers find useless methods and methods, and delete it to further reduce the size of the code.
4. Reverse compilation and protection: JMETRIX can be compiled and protects the Java class library to prevent others from reverse the code.
5. Flexible configuration: JMETRIX provides a wealth of configuration options, and developers can flexibly adjust the confusion and optimization parameters according to specific needs.
The steps of confusion and compression optimization of JMETRIX for java libraries are as follows: as follows:
Step 1: Install jmetrix
First, download and install the JMETRIX tool from the JMETRIX official website.
Step 2: Configure jmetrix
Find the JMETRIX.properties file in the installation directory of JMETRIX to modify the configuration option to meet the specific needs.For example, you can configure confusion and optimization levels, protection methods, and output directory.
Step 3: Run jmetrix
Use the terminal window of the command line or the integrated development environment (IDE), enter the JMETRIX installation directory, and execute the following command:
java -jar jmetrix.jar -verbose -conf jmetrix.properties yourLibrary.jar
Among them, JMETRIX.JAR is the main jar file of the JMETRIX tool. YourLibrary.jar is a Java class library that needs to be confused and compressed.
Step 4: Check the confusion and optimization results
After executing the command, JMetrix will automatically confuse and compress the Java library to save the results in the specified output directory.Developers can open the output directory, check the confusion and optimized Java class library.
Example code:
Here are a code of confusion and optimization of Java libraries using JMETRIX:
public class MyClass {
public static void main(String[] args) {
// Code before confusion and compression optimization
System.out.println("Hello, Java!");
}
}
After running jmetrix, the optimized code obtained:
public class p1 {
public static void main(String[] args) {
// Code after confusion and compression optimization
System.out.println("Hello, Java!");
}
}
By using JMETRIX to confuse and optimize the Java class library, it can protect the security of the code, reduce the size of the code, and improve the execution efficiency of the code.At the same time, the flexible configuration options provided by JMETRIX can also be customized according to actual needs to meet different needs.