Changes for page 01 Lua Functions

Last modified by Theodore Xu on 2023/10/26 10:51

From version 5.14
edited by Stone Wu
on 2022/07/12 09:50
Change comment: (Autosaved)
To version 10.1
edited by Hunter
on 2023/01/15 16:45
Change comment: There is no comment for this version

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Parent
... ... @@ -1,1 +1,1 @@
1 -V-BOX.V-Net.1\.User Manual.04 Lua Script.WebHome
1 +V-BOX.V-Net.Manual.04 Lua Script.WebHome
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Stone
1 +XWiki.Hunter
Content
... ... @@ -140,7 +140,7 @@
140 140  
141 141   Table 2-1
142 142  
143 -(% class="box errormessage" %)
143 +(% class="box infomessage" %)
144 144  (((
145 145  **✎Note: **If HLword enters any other value, it will be treated as invalid.
146 146  )))
... ... @@ -608,11 +608,12 @@
608 608  Attempting to use a script to open a serial port in an unsupported mode will result in an error directly, as below.
609 609  
610 610  |(((
611 +{{code language="LUA"}}
611 611  local setup = {
612 612  
613 613  name = "COM2",
614 614  
615 -mode = 422, ~-~- COM2 does not support RS422
616 +mode = 422, -- COM2 does not support RS422
616 616  
617 617  ...
618 618  
... ... @@ -619,6 +619,7 @@
619 619  }
620 620  
621 621  serial.open(setup)
623 +{{/code}}
622 622  )))
623 623  
624 624  **Data bit:**
... ... @@ -1063,8 +1063,9 @@
1063 1063  
1064 1064  If there is no custom configuration, return an empty table, otherwise, return with "field name/field content"
1065 1065  
1066 -E.g:
1068 +**For example:**
1067 1067  
1070 +{{code language="LUA"}}
1068 1068  {
1069 1069  
1070 1070  [1]= {[1]=1234, [2]=1, [3]='temp', [4]='23.5', [5]={"fruit"="apple"}},
... ... @@ -1077,7 +1077,8 @@
1077 1077  
1078 1078  }
1079 1079  
1080 -Failed: //table// empty table
1083 +Failed: table empty table
1084 +{{/code}}
1081 1081  
1082 1082  (((
1083 1083  == **bns_get_config(string from)** ==
... ... @@ -1157,13 +1157,15 @@
1157 1157  
1158 1158  Type (1: switch, 2: number, 3: string)
1159 1159  
1160 -E.g:
1161 - {
1164 +**For example:**
1162 1162  
1163 -[1]={~-~-The first communication port
1166 +{{code language="LUA"}}
1167 +{
1164 1164  
1165 -[1]={~-~-monitoring point array of the first communication port
1169 +[1]={--The first communication port
1166 1166  
1171 +[1]={--monitoring point array of the first communication port
1172 +
1167 1167  [1]={[1]=11,[2]='data1',[3]=3,[4]=2},
1168 1168  
1169 1169  [2]={[1]=12,[2]='data2',[3]=3,[4]=2},
... ... @@ -1170,23 +1170,23 @@
1170 1170  
1171 1171  ...
1172 1172  
1173 -[n]={[1]=xx,[2]='datan',[3]=x,[4]=x},~-~-n monitoring points
1179 +[n]={[1]=xx,[2]='datan',[3]=x,[4]=x},--n monitoring points
1174 1174  
1175 1175  },
1176 1176  
1177 -[2]=14, ~-~-ID
1183 +[2]=14, --ID
1178 1178  
1179 -[3]='Modbus TCP' ~-~-n monitoring points
1185 +[3]='Modbus TCP' --n monitoring points
1180 1180  
1181 1181  },
1182 1182  
1183 -[2]={~-~-The second communication port
1189 +[2]={--The second communication port
1184 1184  
1185 -[1]={},~-~-The monitoring point of the second communication port is not configured and is empty
1191 +[1]={},--The monitoring point of the second communication port is not configured and is empty
1186 1186  
1187 -[2]=15, ~-~-ID
1193 +[2]=15, --ID
1188 1188  
1189 -[3]='WECON' ~-~-communication protocol name
1195 +[3]='WECON' --communication protocol name
1190 1190  
1191 1191  },
1192 1192  
... ... @@ -1193,6 +1193,7 @@
1193 1193  ...n communication ports and so on
1194 1194  
1195 1195  }
1202 +{{/code}}
1196 1196  
1197 1197  Failed~:// table// empty table
1198 1198  
... ... @@ -1272,8 +1272,9 @@
1272 1272  
1273 1273  Succeed: //table// one-dimensional array
1274 1274  
1275 -E.g:
1282 +**For example:**
1276 1276  
1284 +{{code language="LUA"}}
1277 1277  {
1278 1278  
1279 1279  [1]="This is the oldest message", - the first is the oldest message
... ... @@ -1285,6 +1285,7 @@
1285 1285  [n]="This is the latest message", - the last is the latest message
1286 1286  
1287 1287  }
1296 +{{/code}}
1288 1288  
1289 1289  Failede: nil
1290 1290  
... ... @@ -1302,7 +1302,7 @@
1302 1302  
1303 1303  == **https request** ==
1304 1304  
1305 -Example
1314 +**For example:**
1306 1306  
1307 1307  {{code language="LUA"}}
1308 1308  local json = require("json")
... ... @@ -1358,7 +1358,7 @@
1358 1358  
1359 1359  **Access in bit mode, the prefix is @B_HDX, the number in front of "." indicates the number of the word, and the number behind is the bit number of the word.**
1360 1360  
1361 -For example: @B_HDX1020.12, its meaning is to access the system data area in bit mode, the specific location is the 13th bit of the 1020th word.
1370 +**For example:** @B_HDX1020.12, its meaning is to access the system data area in bit mode, the specific location is the 13th bit of the 1020th word.
1362 1362  
1363 1363  (% class="box infomessage" %)
1364 1364  (((
... ... @@ -1370,7 +1370,6 @@
1370 1370  )))
1371 1371  
1372 1372  
1373 -
1374 1374  (((
1375 1375  == **Data storage area(HDW/HDX)** ==
1376 1376  )))
... ... @@ -1381,7 +1381,7 @@
1381 1381  1. Access in bit mode, the number range is: "@B_HDX0.0"-"@B_HDX299999.15".
1382 1382  
1383 1383  (((
1384 -== **8.2 Special data area (HSW/HSX)** ==
1392 +== **Special data area (HSW/HSX)** ==
1385 1385  
1386 1386  (% class="box infomessage" %)
1387 1387  (((
... ... @@ -1496,21 +1496,40 @@
1496 1496  ** addr1:"@B_Y0" "@B_Y1" "@B_X0" "@B_X1"
1497 1497  ** addr2:"@B_Y0" "@B_Y1"
1498 1498  * Obtaining IMEI (read only)
1499 -*
1507 +** addr_getstring("@W_HSW191",17)
1500 1500  * Obtaining ICCID (read only)
1509 +** addr_getstring("@W_HSW225",15)
1510 +* (((
1511 +TSAP settings of Siemens LOGO PLC* (((
1512 +addr_setword("@W_0#HSW1200",8192) means set the Local TSAP as 20.00
1513 +)))
1514 +* (((
1515 +addr_setword("@W_0#HSW1201",4096) means set the Remote TSAP as 10.00
1516 +)))
1517 +)))
1501 1501  
1502 1502  (((
1520 +== **Power-down storage area (HAW/HAX)** ==
1521 +
1522 +The system storage area (HAW) is used for the system power-down hold registers:
1523 +
1524 +1. Accessed as a word, numbered in the range: "@W_HAW0"-"@W_HAW199999".
1525 +1. Accessed by bit, the numbering range is: "@B_HAX0.0"-"@B_HAX199999.15".
1526 +
1527 +(% class="box infomessage" %)
1528 +(((
1529 +**✎Note:** HAW/HAX is a power-down hold, that is, the registers of this type can retain the data before power-down in case of power-down.
1530 +)))
1531 +
1503 1503  = **9 General Functions** =
1504 1504  )))
1505 1505  
1506 1506  (((
1507 -== **9.1 send_sms_ira(string number, string message)** ==
1536 +== **send_sms_ira(string number, string message)** ==
1508 1508  )))
1509 1509  
1510 -**Function:**
1539 +**Function:** Use IRA character set to send English text messages
1511 1511  
1512 -Use IRA character set to send English text messages
1513 -
1514 1514  **Parameters:**
1515 1515  
1516 1516  //number: //number (up to 32 characters, the excess will be discarded)
... ... @@ -1524,7 +1524,7 @@
1524 1524  Failed: multi
1525 1525  
1526 1526  (((
1527 -== **9.2 send_sms_ucs2(string number, string message)** ==
1554 +== **send_sms_ucs2(string number, string message)** ==
1528 1528  )))
1529 1529  
1530 1530  **Function:**
... ... @@ -1544,13 +1544,11 @@
1544 1544  Failed: multi
1545 1545  
1546 1546  (((
1547 -== **9.3 sms_get_state(number id)** ==
1574 +== **sms_get_state(number id)** ==
1548 1548  )))
1549 1549  
1550 -**Function:**
1577 +**Function:** Get the status of the SMS
1551 1551  
1552 -Get the status of the SMS
1553 -
1554 1554  **parameter:**
1555 1555  
1556 1556  //id~:// SMS corresponding id
... ... @@ -1562,13 +1562,11 @@
1562 1562  Failed: multi
1563 1563  
1564 1564  (((
1565 -== **9.4 jwt_encode(table head, table payload, string aud, number iat, number exp, string key, int jwttype)** ==
1590 +== **jwt_encode(table head, table payload, string aud, number iat, number exp, string key, int jwttype)** ==
1566 1566  )))
1567 1567  
1568 -**Function:**
1593 +**Function:** Convert data to JWT format
1569 1569  
1570 -Convert data to JWT format
1571 -
1572 1572  **parameter:**
1573 1573  
1574 1574  //aud: //project name
... ... @@ -1613,19 +1613,20 @@
1613 1613  
1614 1614  //key~:// the private key required for encryption
1615 1615  
1616 -For example:
1639 +**For example:**
1617 1617  
1641 +{{code language="LUA"}}
1618 1618  function jwt.main()
1619 1619  
1620 -local PRIVATE_KEY = ~[~[~-~- Please enter the secret key~-~-]]
1644 +local PRIVATE_KEY = [[-- Please enter the secret key--]]
1621 1621  
1622 1622  local JWTType=0
1623 1623  
1624 -local payload = ~{~{key="test1",value="test1",type="0"},
1648 +local payload = {{key="test1",value="test1",type="0"},
1625 1625  
1626 1626  {key="test",value="123122131",type="1"}}
1627 1627  
1628 -local head = ~{~{ key="name",value="data",type="0"},
1652 +local head = {{ key="name",value="data",type="0"},
1629 1629  
1630 1630  {key="test2",value="test2",type="0"}}
1631 1631  
... ... @@ -1640,15 +1640,14 @@
1640 1640  print(en)
1641 1641  
1642 1642  End
1667 +{{/code}}
1643 1643  
1644 1644  (((
1645 -== **9.5 convertohex(number type, number value)** ==
1670 +== **convertohex(number type, number value)** ==
1646 1646  )))
1647 1647  
1648 -**Function:**
1673 +**Function:** Convert data into hexadecimal data
1649 1649  
1650 -Convert data into hexadecimal data
1651 -
1652 1652  **parameter:**
1653 1653  
1654 1654  //type~:// incoming data type 0:word 1:dword 2:float
... ... @@ -1661,106 +1661,445 @@
1661 1661  
1662 1662  Failed: multi
1663 1663  
1687 +== **crc.init(table prarm)** ==
1688 +
1689 +**Function:** Initialize the CRC
1690 +
1691 +**Parameters:**
1692 +
1693 +prarm is a Lua table and needs to contain the following fields.
1694 +
1695 +* string prarm name, see table 9-1 for details of the parameter model name When this parameter is passed in, the default table parameters are used and the poly,init,xorout,refin,and refout passed in are invalid.
1696 +* number prarm.width: the width, i.e. the number of CRC bits.
1697 +* number [prarm.poly]: short for the generated item in hexadecimal. For example, CRC-32 is 0x04C11DB7, ignoring the highest bit "1", i.e., the complete generation item is 0x104C11DB7.
1698 +* number [prarm.init]: the initialization preset value of the register (crc) at the beginning of the algorithm in hexadecimal.
1699 +* number [prarm.xorout]: the final CRC value obtained after heterodyning the calculation result with this parameter.
1700 +* number [prarm.refin]: whether each byte of the data to be measured is inverted by bit, true or false.
1701 +* number [prarm.refout]: after the calculation or before the heterodyning output, whether the whole data is inverted by bit, true or false.
1702 +
1703 +**Return:**
1704 +
1705 +Success: crc object
1706 +
1707 +Failure: multi, error code
1708 +
1664 1664  (((
1665 -== **9.6 set_network(table config)** ==
1710 +|=Parameter model name|=poly|=init|=xorout|=refin|=refout
1711 +|crc8|0x07|0x00|0x00|false|false
1712 +|crc8_cdma2000|0x9B|0xFF|0x00|false|false
1713 +|crc8_darc|0x39|0x00|0x00|true|true
1714 +|crc8_dvb_s2|0xD5|0x00|0x00|false|false
1715 +|crc8_ebu|0x1D|0xFF|0x00|true|true
1716 +|crc8_i_code|0x1D|0xFD|0x00|false|false
1717 +|crc8_itu|0x07|0x00|0x55|false|false
1718 +|crc8_maxim|0x31|0x00|0x00|true|true
1719 +|crc8_rohc|0x07|0xFF|0x00|true|true
1720 +|crc8_wcdma|0x9B|0x00|0x00|true|true
1721 +|crc8_sae_j1850|0x1D|0xFF|0xFF|false|false
1722 +|crc8_opensafety|0x2F|0x00|0x00|false|false
1723 +|crc16_tms37157|0x1021|0x3791|0x0000|true|true
1724 +|crc16_a|0x1021|0x6363|0x0000|true|true
1725 +|crc16_riello|0x1021|0x554D|0x0000|true|true
1726 +|crc16_ccitt_false|0x1021|0xFFFF|0x0000|false|false
1727 +|crc16_arc|0x8005|0x0000|0x0000|true|true
1728 +|crc16_arc_ccitt|0x1021|0x1D0F|0x0000|false|false
1729 +|crc16_buypass|0x8005|0x0000|0x0000|false|false
1730 +|crc16_cdma2000|0xC867|0xFFFF|0x0000|false|false
1731 +|crc16_dds110|0x8005|0x800D|0x0000|false|false
1732 +|crc16_dect_r|0x0589|0x0000|0x0001|false|false
1733 +|crc16_dect_x|0x0589|0x0000|0x0000|false|false
1734 +|crc16_dnp|0x3D65|0x0000|0xFFFF|true|true
1735 +|crc16_en_13757|0x3D65|0x0000|0xFFFF|false|false
1736 +|crc16_genibus|0x1021|0xFFFF|0xFFFF|false|false
1737 +|crc16_maxim|0x8005|0x0000|0xFFFF|true|true
1738 +|crc16_mcrf4xx|0x1021|0xFFFF|0x0000|true|true
1739 +|crc16_t10_dif|0x8BB7|0x0000|0x0000|false|false
1740 +|crc16_teledisk|0xA097|0x0000|0x0000|false|false
1741 +|crc16_usb|0x8005|0xFFFF|0xFFFF|true|true
1742 +|crc16_kermit|0x1021|0x0000|0x0000|true|true
1743 +
1744 +(% class="wikigeneratedid" %)
1745 +Table 9-1
1746 +
1747 +== **crc:calc(string crcValue)** ==
1748 +
1749 +**Function:** Calculate CRC result
1750 +
1751 +**Parameter:**
1752 +
1753 +crcValue: the value to be calculated
1754 +
1755 +**Return:**
1756 +
1757 +Succeed: calculated result
1758 +
1759 +Failed: multi, error code
1666 1666  )))
1667 1667  
1668 -**Function:**
1762 +**For example:**
1669 1669  
1670 -Set V-BOX network, take effect after restart
1764 +{{code language="LUA"}}
1765 +function crcTest.main()
1671 1671  
1672 -**parameter:**
1767 +local param = {
1673 1673  
1674 -//config~:// incoming network configuration table
1769 +name = '',
1675 1675  
1676 -1. connectMode: the way V-BOX connects to the server, 0: Ethernet, 1: WIFI, 2: 4G, 3: 2G, it is not allowed to be empty.
1677 -1. ethernetEnable: Whether to enable Ethernet, 1: enable, 0: disable, and it is not allowed to be empty.
1678 -1. ethernetLanIp: Set the LAN IP address. Only V-BOX with three network ports support this configuration, and other models of V-BOX do not support setting LAN IP. This item is allowed to be empty.
1679 -1. ethernetIpMode: Whether to enable Ethernet static IP, 1: Enable static IP, 0: DHCP, not allowed to be empty.
1680 -1. ethernetIp: The IP address needs to be configured when the Ethernet static IP is used, and it is not allowed to be empty.
1681 -1. ethernetNetmask: The subnet mask needs to be configured when Ethernet static IP is used, and it is not allowed to be empty.
1682 -1. ethernetGateway: The gateway can be configured when Ethernet static IP is used.
1771 +width = 64,
1683 1683  
1684 -1. When using the Ethernet network, if the Gateway is empty, V-BOX will not connect to the server.
1685 -1. If you only use Ethernet to directly connect to the PLC for communication, you do not need to configure a gateway.
1773 +poly = 0x42F0E1EBA9EA3693,
1686 1686  
1687 -1. ethernetFirstDns: You can configure the preferred DNS server when the Ethernet static IP is used, and it is allowed to be empty. If you use the Ethernet network and do not fill in the DNS server, V-BOX will not be connected to the server.
1688 -1. ethernetSpareDns: Alternate DNS server can be configured when the Ethernet static IP is used, and it is allowed to be empty.
1689 -1. wifiEnable: Whether to enable WIFI, 1: enable, 0: disable, it is not allowed to be empty. If it is a model that does not include WIFI, directly disable it.
1690 -1. wifiName: WIFI name, if WIFI is enabled, it is not allowed to be empty.
1691 -1. wifiPassword: WIFI password, it is allowed to be empty.
1692 -1. wifiIpMode: Whether to enable WIFI static IP, 1: Enable static IP, 0: DHCP, not allowed to be empty.
1693 -1. wifiIp: IP address needs to be configured when WIFI static IP is used, it is not allowed to be empty.
1694 -1. wifiNetmask: The subnet mask needs to be configured when WIFI static IP is used, and it is not allowed to be empty.
1695 -1. wifiGateway: The gateway can be configured when WIFI static IP is used, and it is not allowed to be empty.
1696 -1. wifiFirstDns: You can configure the preferred DNS server when the WIFI static IP is used, and it is allowed to be empty. If you use the WIFI network and do not fill in the DNS server, V-BOX will not be connected to the server.
1697 -1. wifiSpareDns: Alternate DNS server can be configured when the WIFI static IP is used, and it is allowed to be empty.
1698 -1. mobileEnable: Whether to enable the mobile network, 1: enable, 0: disable, it is not allowed to be empty, if it does not include 4G models, directly disable it.
1699 -1. mobileApnMode: Whether to manually configure the APN, 0: Use the default APN, 1: Manually configure the APN, it is not allowed to be empty.
1700 -1. apnName: APN name, if you choose to manually configure APN, it is not allowed to be empty.
1701 -1. apnPassword: APN username, it is allowed to be empty.
1702 -1. apnUserName: APN number, it is allowed to be empty.
1703 -1. apnNumber: APN number, it is allowed to be empty.
1775 +init = 0xFFFFFFFFFFFFFFFF,
1704 1704  
1777 +xorout = 0xFFFFFFFFFFFFFFFF,
1778 +
1779 +refin = 1,
1780 +
1781 +refout = 1
1782 +
1783 +}
1784 +
1785 +crc64,err = crc.init(param)
1786 +
1787 +if not crc64 then
1788 +
1789 +print("Crc init failed:", err)
1790 +else
1791 +
1792 +crcvalue = crc64:calc("123456789")
1793 +
1794 +print(string.format("crc64 calc :0X%16X", crcvalue))
1795 +
1796 +end
1797 +
1798 +end
1799 +{{/code}}
1800 +
1801 += **10 Special function for V-NET** =
1802 +
1803 +== **normal_get_alldata()** ==
1804 +
1805 +**Function: **Obtain the data of all the monitoring points
1806 +
1807 +**Parameter: None**
1808 +
1705 1705  **Return:**
1706 1706  
1707 -Succeed: true
1811 +Succeed: table two-dimensional arrays, as follows:
1708 1708  
1709 -Faied: multi
1813 +* Each item is a monitoring point and contains 4 attributes:
1814 +** 1: ID
1815 +** 2: status
1816 +** 3: tag name
1817 +** 4: value
1818 +* Status contains 3 enumerated values
1819 +** 0: offline
1820 +** 1: online
1821 +** 2: timeout
1822 +* Customization returns an empty table if there is no configuration, otherwise returns "field name/field content"
1710 1710  
1711 -(((
1712 -== **9.7 remote_com_start(string config)** ==
1713 -)))
1824 +**For example:**
1714 1714  
1715 -**Function:**
1826 +{{code language="LUA"}}
1827 +{
1716 1716  
1717 -start serial port pass-through
1829 +[1]= {[1]=1234, [2]=1, [3]='temp', [4]='23.5'},
1718 1718  
1831 +[2]= {[1]=1235, [2]=1, [3]='humi', [4]='67'},
1832 +
1833 +...
1834 +
1835 +[n]= {[1]=xxxx, [2]=x, [3]='xxxx', [4]='xx.x'},
1836 +
1837 +}
1838 +
1839 +Failed: table, empty table
1840 +{{/code}}
1841 +
1842 +== **normal_setdata_byname(string name, string data)** ==
1843 +
1844 +**Function:** Write data to the monitoring point name
1845 +
1719 1719  **Parameter:**
1720 1720  
1721 -//config: //incoming serial port parameter configuration, JSON format
1848 +name: the name of monitoring point
1722 1722  
1723 -1. type:0, serial port pass-through
1724 -1. port: serial port number marked on the V-BOX
1725 -1. comtype:0-RS232, 1-RS485, 2-RS422
1726 -1. baudrate: Baud Rate
1727 -1. data_length: Data Bits
1728 -1. stop_bit: Stop Bit
1729 -1. check_bit: Check Bit
1850 +data: the data to be written
1730 1730  
1731 1731  **Return:**
1732 1732  
1733 -Succeed: true
1854 +Succeed: string: The value of the monitor point before it is written
1734 1734  
1735 -Failed: multi
1856 +Failed: nil
1736 1736  
1737 -(((
1738 -== **9.8 remote_com_stop()** ==
1739 -)))
1858 +== **normal_getdata_byname(string name)** ==
1740 1740  
1741 -**Function:**
1860 +**Function:** Read the data of the monitoring point name
1742 1742  
1743 -close serial port pass-through
1862 +**Parameter:**
1744 1744  
1864 +name: the name of monitoring point
1865 +
1745 1745  **Return:**
1746 1746  
1747 -Succeed: true
1868 +Succeed: string
1748 1748  
1870 +Failed: nil
1871 +
1872 += **11 MySQL database operation** =
1873 +
1874 +== **luaMySql.init(string sourcename, string username, string password, string host, number port, string character)** ==
1875 +
1876 +**Function:** Configure database connection parameters
1877 +
1878 +**Parameter:**
1879 +
1880 +sourcename: the name of database
1881 +
1882 +username: the username of the connection
1883 +
1884 +password: the password of the connection
1885 +
1886 +host: the host name of the connection
1887 +
1888 +port: the host port of the connection
1889 +
1890 +character: the character set of the connection
1891 +
1892 +**Return:**
1893 +
1894 +Succeed: string
1895 +
1749 1749  Failed: multi
1750 1750  
1751 -(((
1752 -== **9.9 remote_com_state()** ==
1753 -)))
1898 +== **luaMySql.exec(string statement)** ==
1754 1754  
1755 -**Function:**
1900 +**Function:** Execute the given SQL statement without returning the result set (add, delete, change)
1756 1756  
1757 -query the serial port pass-through status and pass-through server domain name and port
1902 +**Parameter:**
1758 1758  
1904 +statement: the given SQL statement
1905 +
1759 1759  **Return:**
1760 1760  
1761 -Succeed:
1908 +Succeed: status: returns the number of rows affected by SQL statement execution.
1762 1762  
1763 -1. number, current pass-through status: 0-none 1,2-starting pass-through 3-penetrating 4,5-finishing pass-through 6-pass-through error
1764 -1. string, pass-through server domain name and port number, xxxx (domain name): xxx (port number)
1910 +Failed: nil, errorString
1765 1765  
1766 -Failed: multi
1912 +== **luaMySql.execWithResult(string statement)** ==
1913 +
1914 +**Function:** Execute the given SQL statement returning the result set (check)
1915 +
1916 +**Parameter:**
1917 +
1918 +statement: the given SQL statement
1919 +
1920 +**Return:**
1921 +
1922 +Succeed: table: returns the result set
1923 +
1924 +Failed: nil, errorString
1925 +
1926 +**For example:**
1927 +
1928 +{{code language="LUA"}}
1929 +mysql = require"mysqlclient"
1930 +
1931 +function DataInitRight()
1932 +
1933 +local dbName = "db_lua1"
1934 +
1935 +local user = "root"
1936 +
1937 +local pwd = "123456"
1938 +
1939 +local host = "192.168.56.186"
1940 +
1941 +local port = 3306
1942 +local character = "UTF8"
1943 +
1944 +mysql.init(dbName, user, pwd, host, port, character)
1945 +
1946 +end
1947 +
1948 +function ExecFunc()
1949 +
1950 +status, errorString = mysql.exec("delete from tb_lua1 where mykey =
1951 +
1952 +10;")
1953 +
1954 +if nil == status then
1955 +
1956 +print("ExecFunc() error:", errorString)
1957 +
1958 +return -1
1959 +
1960 +else
1961 +
1962 +print("the number of rows affected by the command:", status)
1963 +
1964 +end
1965 +
1966 +return 0
1967 +
1968 +end
1969 +
1970 +function ExecWithResultFunc()
1971 +
1972 +status, errorString = mysql.execWithResult("select * from tb_lua1;")
1973 +
1974 +if nil == status then
1975 +
1976 +print("ExecWithResultFunc() error:", errorString)
1977 +
1978 +return -1
1979 +
1980 +else
1981 +
1982 +print("ExecWithResultFunc()
1983 +
1984 +success
1985 +
1986 +: status
1987 +
1988 +type
1989 +
1990 +=
1991 +
1992 +",
1993 +
1994 +type(status))
1995 +
1996 +print("ExecWithResultFunc() success : status len = ", #status)
1997 +
1998 +local num = #status
1999 +
2000 +local i = 1
2001 +
2002 +if num > 0 then
2003 +
2004 +for i = 1, num, 1 do
2005 +
2006 +local var = string.format("select result[%d] :mykey = %d,
2007 +
2008 +value = %s", i, status[i].mykey, status[i].value)
2009 +
2010 +print(var)
2011 +
2012 +end
2013 +
2014 +end
2015 +
2016 +print("---------------")
2017 +
2018 +end
2019 +
2020 +return 0
2021 +end
2022 +
2023 +function luaMysql_apiTest.main()
2024 +
2025 +print("script running ...")
2026 +
2027 +DataInitRight()
2028 +
2029 +--use exec demo
2030 +
2031 +if ExecFunc() < 0 then
2032 +
2033 +return
2034 +
2035 +end
2036 +
2037 +--use execWithResult demo
2038 +
2039 +if ExecWithResultFunc() < 0 then
2040 +
2041 +return
2042 +
2043 +end
2044 +
2045 +print("script running success")
2046 +
2047 +end
2048 +{{/code}}
2049 +
2050 += **12 Message summary algorithm** =
2051 +
2052 +== **hmac(string hash_func, string key, string message)** ==
2053 +
2054 +**Function:** HMAC calculate
2055 +
2056 +**Function name**
2057 +
2058 +hash_func:
2059 +
2060 +* [md5, sha1, sha224, sha256, sha384, sha512]
2061 +* [sha512_224, sha512_256, sha3_224, sha3_256]
2062 +* [sha3_384, sha3_512]
2063 +
2064 +**Parameter:**
2065 +
2066 +key: the key
2067 +
2068 +message: message content
2069 +
2070 +**Return:**
2071 +
2072 +Succeed: string, calculation result
2073 +
2074 +Failed: nil
2075 +
2076 +**For example:**
2077 +
2078 +{{code language="LUA"}}
2079 +local sha = require"sha2"
2080 +
2081 +function hmac_test.main()
2082 +
2083 +local hmac = sha.hmac
2084 +
2085 +print(hmac(sha.sha1,
2086 +
2087 +"your key", "your message"))
2088 +
2089 +end
2090 +{{/code}}
2091 +
2092 +== **sha(string message** ==
2093 +
2094 +**Function:** SHA calculate
2095 +
2096 +**Function name:**
2097 +
2098 +sha:
2099 +
2100 +* sha1, sha224, sha256, sha384, sha512]
2101 +* [sha512_224, sha512_256, sha3_224, sha3_256]
2102 +* [sha3_384, sha3_512]
2103 +
2104 +**Parameter:**
2105 +
2106 +key: the key
2107 +
2108 +message: message content
2109 +
2110 +**Return:**
2111 +
2112 +Succeed: string, calculation result
2113 +
2114 +Failed: nil
2115 +
2116 +For example:
2117 +
2118 +{{code language="LUA"}}
2119 +local sha = require"sha2"
2120 +
2121 +function sha_test.main()
2122 +
2123 +local sha256 = sha.sha256
2124 +
2125 +print(sha256("your message"))
2126 +
2127 +end
2128 +{{/code}}