jmeter BeanShell PreProcessor 性能问题

测试积点老人

在 jmeter 中使用 beanshell 实现签名算法，如下图，在使用过程中发现，直接在 BeanShell PreProcessor 实现加密算法在执行过程中耗时较久，达到 200ms+，影响性能测试


之后将签名算法打包成 jar 包，发现性能提升许多

有哪位大佬可以告诉我这中间的区别吗？以及原因吗？

具体代码

1. import javax.crypto.Cipher;
   
2. import javax.crypto.SecretKey;
   
3. import javax.crypto.spec.IvParameterSpec;
   
4. import javax.crypto.spec.SecretKeySpec;
   
5. 
   
6. import org.apache.commons.codec.binary.Base64;
   
7. import java.security.*;
   
8. import java.security.spec.PKCS8EncodedKeySpec;
   
9. 
   
10. import java.text.SimpleDateFormat;
    
11. import java.util.Date;
    
12. import java.text.DecimalFormat;
    
13. 
    
14. public class App {
    
15.     public static byte[] TripleDesEncrypt(byte[] content, byte[] key) throws Exception {
    
16.         byte[] icv = new byte[8];
    
17.         System.arraycopy(key, 0, icv, 0, 8);
    
18.         return TripleDesEncrypt(content, key, icv);
    
19.     }
    
20. 
    
21.     protected static byte[] TripleDesEncrypt(byte[] content, byte[] key, byte[] icv) throws Exception {
    
22.         final SecretKey secretKey = new SecretKeySpec(key, "DESede");
    
23.         final Cipher cipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
    
24.         final IvParameterSpec iv = new IvParameterSpec(icv);
    
25.         cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
    
26.         return cipher.doFinal(content);
    
27.     }
    
28. 
    
29.     public static byte[] TripleDesDecrypt(byte[] content, byte[] key) throws Exception {
    
30.         byte[] icv = new byte[8];
    
31.         System.arraycopy(key, 0, icv, 0, 8);
    
32.         return TripleDesDecrypt(content, key, icv);
    
33.     }
    
34. 
    
35.     protected static byte[] TripleDesDecrypt(byte[] content, byte[] key, byte[] icv) throws Exception {
    
36.         final SecretKey secretKey = new SecretKeySpec(key, "DESede");
    
37.         final Cipher cipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
    
38.         final IvParameterSpec iv = new IvParameterSpec(icv);
    
39.         cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);
    
40.         return cipher.doFinal(content);
    
41.     }
    
42.     public static String sign(String content, String privateKeyPem,long time) {
    
43.         try {
    
44.             long startTime = System.currentTimeMillis();         
    
45.         String privateKeyPem_String = privateKeyPem.replace("-----BEGIN PRIVATE KEY-----", "").replace("-----END PRIVATE KEY-----", "");
    
46.         byte[] encodedKey = org.bouncycastle.util.encoders.Base64.decode(privateKeyPem_String.getBytes("UTF-8"));
    
47.         long spendtime2 = System.currentTimeMillis() - startTime;
    
48.         log.info("=====sign Base64 :"+ spendtime2);
    
49. 
    
50.         long startTime3 = System.currentTimeMillis();
    
51.         PrivateKey privateKey = KeyFactory.getInstance("RSA").generatePrivate(new PKCS8EncodedKeySpec(encodedKey));
    
52.         Signature signature = Signature.getInstance("SHA256WithRSA");
    
53. 
    
54.         long spendtime4 = System.currentTimeMillis() - startTime3;
    
55.         log.info("=====sign signature :"+ spendtime4);
    
56.         long startTime1 = System.currentTimeMillis();
    
57.         signature.initSign(privateKey);
    
58.         long spendtime3 = System.currentTimeMillis() - startTime1;
    
59.         log.info("=====sign initSign :"+ spendtime3);
    
60.         signature.update(content.getBytes("utf-8"));
    
61.         byte[] signed = signature.sign();
    
62.         long spendtime5 = System.currentTimeMillis() - startTime1;
    
63.         log.info("=====sign update :"+ spendtime5);
    
64.         return new String(org.bouncycastle.util.encoders.Base64.encode(signed));
    
65.         } catch (Exception var6) {
    
66.             String errorMessage = "签名遭遇异常，content=" + content + " privateKeySize=" + privateKeyPem.length() + " reason=" + var6.getMessage();
    
67.             // log.error("====error: "+errorMessage);
    
68.             throw new RuntimeException(errorMessage, var6);
    
69.         }
    
70.     }
    
71. 
    
72. }
    
73. // ==============begin================
    
74. String timestamp = String.valueOf(System.currentTimeMillis());
    
75. vars.put("timestamp",timestamp);
    
76. long startTime = System.currentTimeMillis();
    
77. SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
    
78. Random rand = new Random();
    
79. Integer randomNum = rand.nextInt(5000000) + 1000000;
    
80. String randomNumStr = String.valueOf(randomNum);
    
81. String order_id = sdf.format(new Date()) + randomNumStr;
    
82. vars.put("order_id",order_id);
    
83. 
    
84. double a=Math.random()*100 + 1.00;
    
85. DecimalFormat df = new DecimalFormat( "0.00" );
    
86. String pay_str=df.format(a);
    
87. 
    
88. Random rand = new Random();
    
89. Integer randomNum = rand.nextInt(5000000) + 1000000;
    
90. String randomNumStr = String.valueOf(randomNum);
    
91. String id_card = "430" + randomNumStr + "10104219";
    
92. 
    
93. String private_key = vars.get("key");
    
94. String dealer_id = "00243810";
    
95. 
    
96. String data = "{\"order_id\":\""+order_id+"\",\"dealer_id\":\"\",\"broker_id\":\"\",\"real_name\":\"\",\"card_no\":\"\",\"phone_no\":\"\",\"id_card\":\"\", \"pay\":\""+pay_str+"\"}";
    
97. byte[] des3key = "0857b75Fmev7mbTFuhUNa6Rt".getBytes("utf-8");
    
98. byte[] enc = App.TripleDesEncrypt(data.getBytes("utf-8"), des3key);
    
99. 
    
100. byte[] enc64 = Base64.encodeBase64(enc);
     
101. String data64 = new String(enc64);
     
102. vars.put("data",data64);
     
103. 
     
104. // 进行sign
     
105. String sign_data = "data=" + data64 + "&mess=test×tamp="+ timestamp + "&key=0aYxoR0s474JZns9kS09oXnA2e7Rz0fj";
     
106. String sign = App.sign(sign_data, private_key, startTime);
     
107. vars.put("sign",sign);
     

复制代码

海海豚

https://blog.csdn.net/weixin_30920513/article/details/95674732   参考下吧

qqq911

可能是代码太复杂，每次都要解析一遍导致的？