java模仿http表单提交数据（附文件上传）

java模仿http表单提交数据、模仿http表单上传文件示例

package com.snca.cloudsign.client;

public class SM3 {
	 public static final byte[] iv = { 0x73 （byte） 0x80 0x16 0x6f 0x49  
		        0x14 （byte） 0xb2 （byte） 0xb9 0x17 0x24 0x42 （byte） 0xd7  
		        （byte） 0xda （byte） 0x8a 0x06 0x00 （byte） 0xa9 0x6f 0x30  
		        （byte） 0xbc （byte） 0x16 0x31 0x38 （byte） 0xaa （byte） 0xe3  
		        （byte） 0x8d （byte） 0xee 0x4d （byte） 0xb0 （byte） 0xfb 0x0e  
		        0x4e };  
		      
		    public static int[] Tj = new int[64];  
		      
		    static   
		    {  
		        for （int i = 0; i < 16; i++）   
		        {  
		            Tj[i] = 0x79cc4519;  
		        }  
		      
		        for （int i = 16; i < 64; i++）   
		        {  
		            Tj[i] = 0x7a879d8a;  
		        }  
		    }  
		

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-09-16 15:56  cloudsign_api_client\
     文件         867  2019-02-20 11:06  cloudsign_api_client\.classpath
     文件         396  2019-02-20 09:15  cloudsign_api_client\.project
     目录           0  2019-09-16 15:56  cloudsign_api_client\.settings\
     文件          93  2019-02-20 09:20  cloudsign_api_client\.settings\org.eclipse.core.resources.prefs
     文件         598  2019-02-20 09:15  cloudsign_api_client\.settings\org.eclipse.jdt.core.prefs
     目录           0  2019-09-16 16:12  cloudsign_api_client\bin\
     目录           0  2019-09-16 15:56  cloudsign_api_client\bin\com\
     目录           0  2019-09-16 15:56  cloudsign_api_client\bin\com\snca\
     目录           0  2019-09-16 15:56  cloudsign_api_client\bin\com\snca\cloudsign\
     目录           0  2019-09-16 15:56  cloudsign_api_client\bin\com\snca\cloudsign\client\
     文件        5783  2019-09-16 15:56  cloudsign_api_client\bin\com\snca\cloudsign\client\SM3.class
     文件        3396  2019-09-16 15:56  cloudsign_api_client\bin\com\snca\cloudsign\client\SM3Digest.class
     目录           0  2019-09-17 09:44  cloudsign_api_client\bin\com\snca\cloudsign\main\
     文件        3915  2019-09-16 15:56  cloudsign_api_client\bin\com\snca\cloudsign\main\CloudSignRestUtil.class
     文件      210955  2019-09-17 09:52  cloudsign_api_client\bin\com\snca\cloudsign\main\MainTest.class
     目录           0  2019-09-16 15:56  cloudsign_api_client\bin\lib\
     文件       23308  2018-12-07 15:43  cloudsign_api_client\bin\lib\TZKey.jar
     文件      864598  2019-02-20 09:29  cloudsign_api_client\bin\lib\castor-1.2.jar
     文件      185140  2019-02-20 09:39  cloudsign_api_client\bin\lib\commons-io-2.4.jar
     文件       62050  2019-02-20 10:10  cloudsign_api_client\bin\lib\commons-logging-1.1.3.jar
     文件      747794  2019-02-20 09:34  cloudsign_api_client\bin\lib\httpclient-4.5.3.jar
     文件      325123  2019-02-20 09:35  cloudsign_api_client\bin\lib\httpcore-4.4.7.jar
     文件       41029  2019-02-20 09:38  cloudsign_api_client\bin\lib\httpmime-4.5.3.jar
     目录           0  2019-09-16 16:12  cloudsign_api_client\src\
     目录           0  2019-09-16 15:56  cloudsign_api_client\src\com\
     目录           0  2019-09-16 15:56  cloudsign_api_client\src\com\snca\
     目录           0  2019-09-16 15:56  cloudsign_api_client\src\com\snca\cloudsign\
     目录           0  2019-09-16 15:56  cloudsign_api_client\src\com\snca\cloudsign\client\
     文件       10360  2019-02-20 09:23  cloudsign_api_client\src\com\snca\cloudsign\client\SM3.java
     文件        4272  2019-02-20 11:38  cloudsign_api_client\src\com\snca\cloudsign\client\SM3Digest.java
............此处省略11个文件信息