添加传感器上传数据库

sensor-data-upload/Makefile

@@ -0,0 +1,20 @@
+CROSS_COMPILE ?= 
+CC := $(CROSS_COMPILE)gcc
+STRIP := $(CROSS_COMPILE)strip
+CFLAGS = -Wall -g -O3
+LIB = 
+OBJ = sensor-upload
+
+MYSQL_LIB := $(shell /opt/mysql/bin/mysql_config --libs)
+MYSQL_CFLAGS := $(shell /opt/mysql/bin/mysql_config --cflags)
+
+
+all: main.o
+	$(CC) $(CFLAGS) $(MYSQL_CFLAGS) -o $(OBJ) $^ $(MYSQL_LIB) $(LIB)
+	$(STRIP) $(OBJ)
+.c.o:
+	$(CC) $(CFLAGS) $(MYSQL_CFLAGS) -c $<
+
+clean:
+	rm -rf *.o
+	rm $(OBJ)

sensor-data-upload/main.c

@@ -0,0 +1,100 @@
+#include "main.h"
+
+void printResult(MYSQL * mysqlPrint)                // 打印结果集(此处传入指针，而非内容)
+{
+    MYSQL_RES *result;
+    int i;
+    int numFields = 0;
+    int numRows = 0;
+    MYSQL_FIELD *field;
+    MYSQL_ROW row;
+    
+    result = mysql_store_result(mysqlPrint);        // 将查询的全部结果读取到客户端
+    numFields = mysql_num_fields(result);           // 统计结果集中的字段数
+    numRows = mysql_num_rows(result);               // 统计结果集的行数
+    while ((field = mysql_fetch_field(result)))     // 返回结果集中的列信息(字段)
+        printf("%s\t", field->name);
+    printf("\n");
+    if (result) {
+        while ((row = mysql_fetch_row(result)))     // 返回结果集中行的记录
+        {
+            for (i = 0; i < numFields; i++) {
+                printf("%s\t", row[i]);
+            }
+            printf("\n");
+        }
+    }
+
+    mysql_free_result(result);  // 释放result空间
+
+}
+
+int main(int argc, char *argv[], char **env)
+{
+    FILE *fp;
+    char temperature[BUFFER];
+    char time[BUFFER];
+    char dht11[BUFFER];
+    char sql_insert[BUFFER];
+    char system[BUFFER];
+
+    fp = NULL;
+    bzero(temperature, 0);
+    bzero(time, 0);
+    bzero(dht11, 0);
+    bzero(sql_insert, 0);
+    bzero(system, 0);
+
+    fp = popen("/root/gpio/wind -d 28", "r");
+    fgets(temperature, sizeof(temperature), fp);
+    temperature[strlen(temperature) - 1] = 0;
+    fp = popen("date '+%y%m%d%H%M%S'", "r");
+    fgets(time, sizeof(time), fp);
+    time[strlen(time) - 1] = 0;
+    pclose(fp);
+
+    fp = popen("/root/gpio/dht11 29", "r");
+    fgets(dht11, sizeof(dht11), fp);
+    dht11[strlen(dht11) - 1] = 0;
+    printf("%s\n", dht11);
+    pclose(fp);
+    
+    
+    fp = popen("getcpudata | xargs", "r");
+    fgets(system, sizeof(system), fp);
+    system[strlen(system) - 1] = 0;
+    printf("%s\n", system);
+    pclose(fp);
+
+    sprintf(sql_insert, "INSERT INTO temperature (time, temperature, dht11, SYSTEM) VALUES ('%s', '%s', '%s', '%s');", time, temperature, dht11, system);
+    puts(sql_insert);
+
+
+
+    MYSQL mysql;
+    mysql_init(&mysql);
+    if (mysql_real_connect(&mysql, "git.aixiao.me", "root", "198", "mysql", 3306, NULL, 0)) {
+        ;
+    } else {
+        fprintf(stderr, "Connect failed:\n");
+        if (mysql_errno(&mysql)) {
+            printf("\terror code is %d\n\treason:%s\n", mysql_errno(&mysql), mysql_error(&mysql));
+        }
+        goto shutdown;
+    }
+    
+    if (0 != mysql_set_character_set(&mysql, "utf8"))
+    {
+        perror("mysql_set_character_set");
+    }
+
+    mysql_query(&mysql, "use raspberrypi;");
+    mysql_query(&mysql, sql_insert);
+    mysql_query(&mysql, "select *from temperature;");
+    //printResult(&mysql);
+    
+shutdown:
+    mysql_close(&mysql);
+
+    return 0;
+}

sensor-data-upload/main.h

@@ -0,0 +1,13 @@
+#ifndef MAIN_H
+#define MAIN_H
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <mysql.h>
+#include <mysqld_error.h>
+#include <errmsg.h>
+
+#define BUFFER 1024
+
+#endif