1.新增对于 int64, double, float 等类型支持; 2.修复了ps析构函数空指针问题；

cmake-build-debug/.ninja_log

@@ -1,101 +1,52 @@
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cmake-build-debug/Testing/Temporary/LastTest.log

@@ -1,3 +1,3 @@
-Start testing: Nov 04 00:22 CST
+Start testing: Nov 06 11:12 CST
 ----------------------------------------------------------
-End testing: Nov 04 00:22 CST
+End testing: Nov 06 11:12 CST

connection/connection.cpp

@@ -11,39 +11,35 @@ Connection::Connection() {
   // std::cout << ">>> construct connection" << std::endl;
 
   // init
-  mysql_ = mysql_init(nullptr);
-
-  // connect (配置化)
-  mysql_ = mysql_real_connect(mysql_,
+  mysql_init(&mysql_);
+  auto res = mysql_real_connect(&mysql_,
                               "127.0.0.1",
                               "root",
                               "root",
                               "cppbatis",
                               3306,
                               nullptr,
                               0);
-  if (!mysql_) {
-    fprintf(stderr, "mysql_real_connect failed, error:%s\n", mysql_error(mysql_));
+  if (!res) {
+    fprintf(stderr, "mysql_real_connect failed, error_no:%d, err_info:%s\n",
+            mysql_errno(&mysql_), mysql_error(&mysql_));
+    exit(0);  // 数据库异常中断
   }
 
   // 设置字符集
-  if (mysql_set_character_set(mysql_, "utf8")) {
-    fprintf(stderr, "mysql_set_character_set failed, error:%s\n", mysql_error(mysql_));
+  if (mysql_set_character_set(&mysql_, "utf8")) {
+    fprintf(stderr, "mysql_set_character_set failed, error:%s\n", mysql_error(&mysql_));
   }
 }
 
-
 Connection::~Connection() {
 
   // std::cout << ">>> construct connection" << std::endl;
-
-  if (mysql_) {
-    mysql_close(mysql_);
-  }
+    mysql_close(&mysql_);
 }
 
 
-MYSQL* Connection::GetMysqlInstance() {
+MYSQL& Connection::GetMysqlInstance() {
   return mysql_;
 }
 

connection/connection.h

@@ -17,7 +17,7 @@ class Connection {
 
   ~Connection();
 
-  MYSQL* GetMysqlInstance();
+  MYSQL& GetMysqlInstance();
 
 private:
 
@@ -26,7 +26,7 @@ class Connection {
   std::string user;
   std::string passwd;
 
-  MYSQL* mysql_;
+  MYSQL mysql_; // mysql 连接对象
 
 };
 

main.cpp

@@ -14,8 +14,6 @@
 #include "data_struct/test.h"
 #include <mysql/mysql.h>
 #include <memory>
-#include <string.h>
-#include <sstream>
 
 int main() {
 
@@ -39,10 +37,10 @@ int main() {
   ps->Prepare(ss.str());
 
   // 设置 where 条件 & 绑定
-  long limit_age = 19;
+  long limit_age = 16;
   ps->SetInt(0, limit_age );
   std::string name = "张三";
-  ps->SetString(1, name);
+  //ps->SetString(1, name);
   // 绑定参数
   ps->BindParam();
 
@@ -56,6 +54,13 @@ int main() {
   // 查询结果处理（打印）
   for (const auto user : users) {
     printf("## %d,%s,%s,%d ##\n", user.id, user.name.data(), user.email.data(), user.age);
+
+    // easy_json 目前对于中文支持有点问题
+//    Json::FastWriter fw;
+//    Json::Value js_user;
+//    user.marshal(js_user);
+//    auto u = fw.write(js_user);
+//    printf("-> %s", u.c_str());
   }
 
   // 关闭prepare statement