Java Signature getAlgorithm()用法及代码示例

java.security.Signature类的getAlgorithm()方法用于返回此签名对象的算法名称。

用法:

public final String getAlgorithm()

返回值：此方法返回此签名对象的算法名称。

下面是说明getAlgorithm()方法的示例：

范例1：

// Java program to demonstrate 
// getAlgorithm() method 
  
import java.security.*; 
import java.util.*; 
  
public class GFG1 { 
    public static void main(String[] argv) 
    { 
        try { 
  
            // creating the object of Signature 
            Signature sr = Signature.getInstance("SHA1withDSA"); 
  
            // geting the Algorithm 
            // by using method getAlgorithm() 
            String algo = sr.getAlgorithm(); 
  
            // printing the string algo 
            System.out.println("Algorithm:" + algo); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

输出：

Algorithm:SHA1withDSA

范例2：

// Java program to demonstrate 
// getAlgorithm() method 
  
import java.security.*; 
import java.util.*; 
  
public class GFG1 { 
    public static void main(String[] argv) 
    { 
        try { 
  
            // creating the object of Signature 
            Signature sr = Signature.getInstance("NONEwithDSA"); 
  
            // geting the Algorithm 
            // by using method getAlgorithm() 
            String algo = sr.getAlgorithm(); 
  
            // printing the string algo 
            System.out.println("Algorithm:" + algo); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

输出：

Algorithm:NONEwithDSA

相关用法

注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 Java Signature getAlgorithm() method with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。