Java中的提供者 getName() 方法及示例

Java.security.Provider类的getName()方法用于返回此提供者的名称。

句法：

public String getName()

返回值：此方法返回此提供者的名称。

以下是说明getName()方法的示例：

示例 1：

// Java program to demonstrate
// get() method
  
import java.security.*;
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv) throws Exception
    {
  
        try {
            // creating the object of  KeyPairGenerator
            KeyPairGenerator sr = KeyPairGenerator.getInstance("DSA", "SUN");
  
            // getting the Provider of the KeyPairGenerator sr
            // by using method getProvider()
            Provider provider = sr.getProvider();
  
            // getting the name of the provider using getName()
            String name = provider.getName();
  
            // printing the string info
            System.out.println("name : " + name);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

输出：

name : SUN

示例 2：

// Java program to demonstrate
// get() method
  
import java.security.*;
import java.util.*;
  
public class GFG1 {
    public static void main(String[] argv) throws Exception
    {
  
        try {
            // creating the object of  SecureRandom
            SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
  
            // getting the Provider of the SecureRandom sr
            // by using method getProvider()
            Provider provider = sr.getProvider();
  
            // getting the name of the provider using getName()
            String name = provider.getName();
  
            // printing the string info
            System.out.println("name : " + name);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

输出：

name : SUN