267 lines
9.4 KiB
Plaintext
267 lines
9.4 KiB
Plaintext
/*
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文件名:MysqlClass.nut
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路径:Dps_A/BaseClass/MysqlClass/MysqlClass.nut
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创建日期:2024-09-16 21:23
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文件用途:数据库类
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*/
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class Mysql extends Base_C_Object {
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// 0空闲 1任务中 2死亡
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State = 0;
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constructor(Ip, Port, Name, Account, Password) {
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if (!Open(Ip, Port, Name, Account, Password)) error("数据库连接失败");
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}
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/*
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* 读取mysql返回的数据，读取binary类型的字段
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* @param this.C_Object mysql数据库句柄
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* @param columnIndex 要读取的字段的位置
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*/
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function Open(db_ip, db_port, db_name, db_username, db_password) {
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base.constructor(Sq_New_Point(0x80000));
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Sq_CallFunc(S_Ptr("0x83F3AC8"), "pointer", ["pointer"], this.C_Object);
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Sq_CallFunc(S_Ptr("0x83F3CE4"), "int", ["pointer"], this.C_Object);
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//打开数据库句柄
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if (Sq_CallFunc(S_Ptr("0x83F4024"), "int", ["pointer", "pointer", "int", "pointer", "pointer", "pointer"],
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this.C_Object, db_ip, db_port, db_name, db_username, db_password)) {
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return true;
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}
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return false;
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}
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function Fetch() {
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return Sq_CallFunc(S_Ptr("0x83F44BC"), "int", ["pointer"], this.C_Object);
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}
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function Close() {
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Sq_CallFunc(S_Ptr("0x83F3E74"), "int", ["pointer"], this.C_Object);
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Sq_Delete_Point(this.C_Object);
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State = 2;
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}
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/*
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* 读取mysql返回的数据，读取string类型的字段
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* @param this.C_Object mysql数据库句柄
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* @param columnIndex 要读取的字段的位置
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*/
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function ReadStringColumn(columnIndex) {
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//MySQL_get_binary_length
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local binary_length = Sq_CallFunc(S_Ptr("0x81253DE"), "int", ["pointer", "int"], this.C_Object, columnIndex);
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local binary_length_point = Sq_New_Point(binary_length);
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//MySQL_get_binary
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if (1 == Sq_CallFunc(S_Ptr("0x812531A"), "int", ["pointer", "int", "pointer", "int"], this.C_Object, columnIndex, binary_length_point, binary_length)) {
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//读取string类型的数据
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local result = Sq_ReadAddressString(binary_length_point, binary_length);
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Sq_Delete_Point(binary_length_point);
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return result;
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}
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Sq_Delete_Point(binary_length_point);
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return null;
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}
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/*
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* 读取mysql返回的数据，读取有符号int类型的字段
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* @param this.C_Object mysql数据库句柄
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* @param columnIndex 要读取的字段的位置
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*/
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function ReadIntColumn(columnIndex) {
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local intSizePoint = Sq_New_Point(4);
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//MySQL_get_int
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if (1 == Sq_CallFunc(S_Ptr("0x811692C"), "int", ["pointer", "int", "pointer"], this.C_Object, columnIndex, intSizePoint)) {
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//转为blob
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local blob = Sq_Point2Blob(intSizePoint, 4);
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//读取8位有符号整数
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local result = blob.readn('i');
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Sq_Delete_Point(intSizePoint);
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return result;
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}
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// Sq_Delete_Point(intSizePoint);
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return null;
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}
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/*
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* 读取mysql返回的数据，读取无符号int类型的字段
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* @param this.C_Object mysql数据库句柄
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* @param columnIndex 要读取的字段的位置
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*/
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function ReadUIntColumn(columnIndex) {
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local intSizePoint = Sq_New_Point(4);
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//MySQL_get_uint
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if (1 == Sq_CallFunc(S_Ptr("0x80E22F2"), "int", ["pointer", "int", "pointer"], this.C_Object, columnIndex, intSizePoint)) {
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//转为blob
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local blob = Sq_Point2Blob(intSizePoint, 4);
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//读取8位无符号整数
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local result = blob.readn('b');
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Sq_Delete_Point(intSizePoint);
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return result;
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}
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Sq_Delete_Point(intSizePoint);
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return null;
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}
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/*
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* 读取mysql返回的数据，读取float类型的字段
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* @param this.C_Object mysql数据库句柄
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* @param columnIndex 要读取的字段的位置
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*/
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function ReadFloatColumn(columnIndex) {
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local intSizePoint = Sq_New_Point(4);
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//MySQL_get_float
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if (1 == Sq_CallFunc(S_Ptr("0x844D6D0"), "int", ["pointer", "int", "pointer"], this.C_Object, columnIndex, intSizePoint)) {
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//转为blob
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local blob = Sq_Point2Blob(intSizePoint, 4);
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//读取32位浮点数
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local result = blob.readn('f');
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Sq_Delete_Point(intSizePoint);
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return result;
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}
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Sq_Delete_Point(intSizePoint);
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return null;
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}
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/*
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* 读取mysql返回的数据，读取binary类型的字段
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* @param this.C_Object mysql数据库句柄
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* @param columnIndex 要读取的字段的位置
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*/
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function ReadBinaryColumn(columnIndex) {
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//MySQL_get_binary_length
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local binary_length = Sq_CallFunc(S_Ptr("0x81253DE"), "int", ["pointer", "int"], this.C_Object, columnIndex);
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if (binary_length > 0) {
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local binary_length_point = Memory.alloc(binary_length);
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//MySQL_get_binary
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if (1 == Sq_CallFunc(S_Ptr("0x812531A"), "int", ["pointer", "int", "pointer", "int"], this.C_Object, columnIndex, binary_length_point.C_Object, binary_length)) {
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return binary_length_point;
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}
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}
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return null;
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}
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/**
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* mysql查询，带返回结果，返回一个二维数组
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* @param {*} db_pointer 数据库句柄
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* @param {*} select_sql 要执行的查询语句
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* @param {*} column_type_list 返回结果的类型list，按select的column顺序，int，string，unit，float，binary
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* @returns
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*/
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function Select(select_sql, column_type_list) {
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local result_list = [];
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if (Exec_Sql(select_sql)) {
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//获取查询到的数据总数
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local row_count = Sq_CallFunc(S_Ptr("0x80E236C"), "int", ["pointer"], this.C_Object);
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if (row_count > 0) {
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for (local i = 0; i< row_count; i++) {
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Fetch();
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local row = [];
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for (local j = 0; j< column_type_list.len(); j++) {
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//判断是否为空值
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if (!Sq_CallFunc(S_Ptr("0x85F41B2"), "bool", ["pointer", "int"], this.C_Object, j)) {
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row.push(null);
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} else if (column_type_list[j] == "int") {
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row.push(ReadIntColumn(j));
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} else if (column_type_list[j] == "string") {
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row.push(ReadStringColumn(j));
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} else if (column_type_list[j] == "uint") {
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row.push(ReadUIntColumn(j));
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} else if (column_type_list[j] == "float") {
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row.push(ReadFloatColumn(j));
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} else if (column_type_list[j] == "binary") {
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row.push(ReadBinaryColumn(j));
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}
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}
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result_list.push(row);
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}
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}
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}
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return result_list;
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}
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//执行查询返回执行是否成功
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function Exec_Sql(sql) {
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local sql_ptr = Str_Ptr(sql);
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//set query
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local set_query = Sq_CallFunc(S_Ptr("0x83F41C0"), "int", ["pointer", "pointer"], this.C_Object, sql_ptr);
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//执行sql
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local sql_exec_result = Sq_CallFunc(S_Ptr("0x83F4326"), "int", ["pointer", "int"], this.C_Object, 1);
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return sql_exec_result;
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}
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//获取服务端版本
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function GetServerVersion() {
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return Sq_CallFunc(S_Ptr("0x83F460C"), "int", ["pointer"], this.C_Object);
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}
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//获取客户端版本
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function GetClientVersion() {
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return Sq_CallFunc(S_Ptr("0x83F4622"), "int", ["pointer"], this.C_Object);
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}
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}
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class MysqlPool {
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// 用于存储数据库的 IP 地址
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db_ip = null;
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// 用于存储数据库的端口号
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db_port = null;
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// 用于存储数据库的名称
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db_name = null;
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// 用于存储数据库的用户名
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db_username = null;
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// 用于存储数据库的密码
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db_password = null;
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//连接池大小
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PoolSize = 10;
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//连接编码
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Charset = "latin1";
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//连接池
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PoolList = null;
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constructor() {
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PoolList = [];
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getroottable()._MysqlPoolObject <- this;
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}
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function GetInstance() {
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if (!(getroottable().rawin("_MysqlPoolObject"))) MysqlPool();
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// MysqlPool();
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return getroottable()._MysqlPoolObject;
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}
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//设置基础配置
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function SetBaseConfiguration(Ip, Port, Account, Password) {
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db_ip = Str_Ptr(Ip);
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db_port = Port;
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db_name = Str_Ptr("taiwan_cain");
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db_username = Str_Ptr(Account);
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db_password = Str_Ptr(Password);
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}
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//初始化连接池
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function Init() {
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for (local i = 0; i< PoolSize; i++) {
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local Buffer = Mysql(db_ip, db_port, db_name, db_username, db_password);
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Buffer.Exec_Sql(format("SET NAMES %s", Charset));
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PoolList.append(Buffer);
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// print("创建了一条连接,编号: " + i + ",地址: " + Buffer + ", 指针地址: " + Buffer.C_Object);
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}
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}
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function GetConnect() {
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local _Connect = PoolList.pop();
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if (_Connect.State == 0) {
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_Connect.State = 1;
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return _Connect;
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}
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}
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function PutConnect(_Connect) {
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if (_Connect.State == 1) {
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_Connect.State = 0;
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PoolList.append(_Connect);
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}
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}
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} |