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php把json数据导入mysql数据失败

程序员文章站 2022-05-06 10:25:30
...
先说下我做的原理吧：
1、先把json转换成数组；
2、在把数组中的我需要是数据提取下，组成我要是sql语句中VALUES的一部分，提取的这部分我存成一个数组；
3、由于上面提取VALUES是一个数组，我用for循环执行sql语句，但是提示i没有定义
大家看看怎么回事 
 $v) {	//echo "('" . $k . "', '" . $v . "')";	//echo $v."
";	//echo $v['date'].$v['num'].$v['area']."
";	$values[] = "('" . $v['date'] . "', " . $v['num'] . ", " . $v['area'] . ")";} for ($i=0; $iMySQL Error: " . mysqli_error($conn));if (mysqli_affected_rows($conn) == 1) {	echo '这条数据已经添加成功';} else {	echo '程序发生错误，请重新添加'; 			}?>


回复讨论(解决方案)

现在进过群友帮助，已经发现一些问题，但是执行成功后发现添加的数据是json的最后一条数据，这个数据还有问题，数据取整了，没有小数
贴上代码 

 $v) {	//echo "('" . $k . "', '" . $v . "')";	//echo $v."
";	//echo $v['date'].$v['num'].$v['area']."
";	$values[] = "'" . $v['date'] . "', " . $v['num'] . ", " . $v['area'] . "";} for ($i=0; $iMySQL Error: " . mysqli_error($conn));if (mysqli_affected_rows($conn) == 1) {	echo '这条数据已经添加成功';} else {	echo '程序发生错误，请重新添加'; 			}?>

小数问题已经知道了，是数据库设置了int（10），现在设置成了decimal(10,2)就好了 

for ($i=0; $i
  for ($i=0; $i     $q = "INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, $values [$i], NOW())";  
 } 
 
  for ($i=0; $i     $q = "INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, ".$values[$i].", NOW())";  
 }  
 这样当然只保存最后一条，因为$q的值会每次都被覆盖，而不是追加。你只执行了一次mysqli_query的insert操作。  

 改成这样，把mysqli_query写在循环体内就可以了：  
 for ($i=0; $i     $q = "INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, ".$values[$i].", NOW())";  
     $r = mysqli_query ($conn, $q) or trigger_error("Query: $q\n
MySQL Error: " . mysqli_error($conn));  
     if (mysqli_affected_rows($conn) == 1) {  
         echo '这条数据已经添加成功';  
     } else {  
         echo '程序发生错误，请重新添加';              
     }  
 } 
 
  


   


for ($i=0; $i

 这个问题在2楼已经发现，现在根据5楼的修正后发现数据不能全部添加，数据一共有30条，但是添加到数据的时候，数据就到了9月16号那天就结束了（数据库本身有一点数据），自增的id也正好是30，这是什么情况？？？  
  


   for ($i=0; $i     $q = "INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, $values [$i], NOW())";   
 }  
  
 这个问题在2楼已经发现，现在根据5楼的修正后（貌似那个$values也要添加2个点点做连接符）发现数据不能全部添加，数据一共有30条，但是添加到数据的时候，数据就到了9月16号那天就结束了（数据库本身有一点数据），自增的id也正好是30，这是什么情况？？？   
  


   for ($i=0; $i     $q = "INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, ".$values[$i].", NOW())";   
 }   
 这样当然只保存最后一条，因为$q的值会每次都被覆盖，而不是追加。你只执行了一次mysqli_query的insert操作。   

 改成这样，把mysqli_query写在循环体内就可以了：   
 for ($i=0; $i     $q = "INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, ".$values[$i].", NOW())";   
     $r = mysqli_query ($conn, $q) or trigger_error("Query: $q\n
MySQL Error: " . mysqli_error($conn));   
     if (mysqli_affected_rows($conn) == 1) {   
         echo '这条数据已经添加成功';   
     } else {   
         echo '程序发生错误，请重新添加';               
     }   
 }  
  

 修正后发现数据不能全部添加，数据一共有30条，但是添加到数据的时候，数据就到了9月16号那天就结束了（数据库本身有一点数据），自增的id也正好是30，这是什么情况？？？  同时我想问下，还有什么方法可以降json数据导入数据库，由于json数据太多了，所以希望有一个批量的方法  
  


$data ='[{"date":"2014-09-06","num":151,"area":18017.24},{"date":"2014-09-07","num":103,"area":11703.9},{"date":"2014-09-08","num":66,"area":7378.92},{"date":"2014-09-09","num":192,"area":22160.96},{"date":"2014-09-10","num":183,"area":22059.72},{"date":"2014-09-11","num":184,"area":21212.68},{"date":"2014-09-12","num":119,"area":13960.93},{"date":"2014-09-13","num":0,"area":0},{"date":"2014-09-14","num":43,"area":5056.19},{"date":"2014-09-15","num":121,"area":12867.43},{"date":"2014-09-16","num":93,"area":8755.81},{"date":"2014-09-17","num":80,"area":9035.69},{"date":"2014-09-18","num":158,"area":17613.12},{"date":"2014-09-19","num":112,"area":12180.37},{"date":"2014-09-20","num":74,"area":8614.02},{"date":"2014-09-21","num":95,"area":10305.27},{"date":"2014-09-22","num":258,"area":30695.9},{"date":"2014-09-23","num":155,"area":17457.88},{"date":"2014-09-24","num":148,"area":16792.02},{"date":"2014-09-25","num":167,"area":20203.15},{"date":"2014-09-26","num":174,"area":20055.03},{"date":"2014-09-27","num":138,"area":15927.18},{"date":"2014-09-28","num":175,"area":19372.63},{"date":"2014-09-29","num":277,"area":30226.38},{"date":"2014-09-30","num":311,"area":33082.01},{"date":"2014-10-01","num":88,"area":9456.33},{"date":"2014-10-02","num":92,"area":9384.07},{"date":"2014-10-03","num":70,"area":7780.39},{"date":"2014-10-04","num":71,"area":7620.61},{"date":"2014-10-05","num":44,"area":4672.24}]'; $array = json_decode($data, true);$values = array();   foreach ($array as $k => $v) {    $values[] = "'" . $v['date'] . "', " . $v['num'] . ", " . $v['area'] . "";}  for ($i=0; $i';}
  
 测试了下，没有问题啊。  

INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-06', 151, 18017.24, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-07', 103, 11703.9, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-08', 66, 7378.92, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-09', 192, 22160.96, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-10', 183, 22059.72, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-11', 184, 21212.68, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-12', 119, 13960.93, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-13', 0, 0, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-14', 43, 5056.19, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-15', 121, 12867.43, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-16', 93, 8755.81, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-17', 80, 9035.69, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-18', 158, 17613.12, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-19', 112, 12180.37, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-20', 74, 8614.02, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-21', 95, 10305.27, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-22', 258, 30695.9, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-23', 155, 17457.88, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-24', 148, 16792.02, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-25', 167, 20203.15, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-26', 174, 20055.03, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-27', 138, 15927.18, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-28', 175, 19372.63, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-29', 277, 30226.38, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-30', 311, 33082.01, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-01', 88, 9456.33, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-02', 92, 9384.07, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-03', 70, 7780.39, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-04', 71, 7620.61, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-05', 44, 4672.24, NOW())
  
  方法都是先转为数组，然后foreach写入数据库的。 
 
  


   方法都是先转为数组，然后foreach写入数据库的。  
  

 我自己也打印了下，最后提示错误  
INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-06', 151, 18017.24, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-07', 103, 11703.9, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-08', 66, 7378.92, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-09', 192, 22160.96, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-10', 183, 22059.72, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-11', 184, 21212.68, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-12', 119, 13960.93, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-13', 0, 0, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-14', 43, 5056.19, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-15', 121, 12867.43, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-16', 93, 8755.81, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-17', 80, 9035.69, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-18', 158, 17613.12, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-19', 112, 12180.37, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-20', 74, 8614.02, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-21', 95, 10305.27, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-22', 258, 30695.9, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-23', 155, 17457.88, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-24', 148, 16792.02, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-25', 167, 20203.15, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-26', 174, 20055.03, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-27', 138, 15927.18, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-28', 175, 19372.63, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-29', 277, 30226.38, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-09-30', 311, 33082.01, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-01', 88, 9456.33, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-02', 92, 9384.07, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-03', 70, 7780.39, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-04', 71, 7620.61, NOW())INSERT INTO f_chengjiao (city_id, fang_time, taoshu, area, os_time) VALUES (1, '2014-10-05', 44, 4672.24, NOW())程序发生错误，请重新添加
  


 我在重新添加了下数据，数据还是到了id=30的时候不添加了，但是提示都添加成功了，到数据库中看数据添加不全  
 你看下截图  
  看看你现在的程序 
 
  你的json不是只有30????？  
 怎??有31  

     if (mysqli_affected_rows($conn) == 1) {  
         echo '这条数据已经添加成功';  
     } else {  
         echo '程序发生错误，请重新添加';              
     }  
 ??要放在每一次mysqli_query之後呢。 
 
  


   看看你现在的程序  
  

 这个是独立的文件，上面2个引入文件是数据库文件，不打紧  
  


   你的json不是只有30????？   
 怎??有31   

     if (mysqli_affected_rows($conn) == 1) {   
         echo '这条数据已经添加成功';   
     } else {   
         echo '程序发生错误，请重新添加';               
     }   
 ??要放在每一次mysqli_query之後呢。  
  

 前面17条数据是以前写的测试数据，从id=18开始就是导入数据，每次都是到了id=30就结束导入了，这时候数据都没有前面添加完全  
  你的程序几经修改了，你不给我看到你现在的程序的话，我如何告诉你怎样调试？ 
 
  


   你的程序几经修改了，你不给我看到你现在的程序的话，我如何告诉你怎样调试？  
  

 抱歉，你看看，这是我最后修改后的  
 $v) {	//echo "('" . $k . "', '" . $v . "')";	//echo $v."
";	//echo $v['date'].$v['num'].$v['area']."
";	$values[] = "'" . $v['date'] . "', " . $v['num'] . ", " . $v['area'] . "";} //echo count($values);for ($i=0; $iMySQL Error: " . mysqli_error($conn));	//echo $q.'
';	if (mysqli_affected_rows($conn) == 1) {		echo '这条数据已经添加成功';	} else {		echo '程序发生错误，请重新添加'; 				}}?>
  
   echo '程序发生错误，请重新添加'  . $q; 
 
  


    echo '程序发生错误，请重新添加'  . $q;  
  

 没有按照提示报错，而是wamp的报错方式  

  这就是你的问题了  
 //require ('inc/config.php');  
 require (MYSQL);//连接数据库  

 config 不加载，那 MYSQL 常量是在哪里定义的？ 
 
  


   这就是你的问题了   
 //require ('inc/config.php');   
 require (MYSQL);//连接数据库   

 config 不加载，那 MYSQL 常量是在哪里定义的？  
  
 config已经打开了  
 $v) {	//echo "('" . $k . "', '" . $v . "')";	//echo $v."
";	//echo $v['date'].$v['num'].$v['area']."
";	$values[] = "'" . $v['date'] . "', " . $v['num'] . ", " . $v['area'] . "";} //echo count($values);for ($i=0; $iMySQL Error: " . mysqli_error($conn));	//echo $q.'
';	if (mysqli_affected_rows($conn) == 1) {		echo '这条数据已经添加成功';	} else {		echo '程序发生错误，请重新添加'. $q; 				}}?>
  
 虽然添加成功，但是还是到id=30的时候就不添加后面的数据了（数据实际到了9月17号就结束了）  
  截图中有30个添加成功  

 你总是再添加，并没有哪里再删除，数据都加了好几遍了  
 你也不看看？ 
 
  30个成功我看到了，但是数据添加不全，你可以看看我在11楼的截图  
 整个数据是id=1到id=17是我以前写程序添加的测试数据，并不在json内，json数据是从id=18开始，添加到id=30就结束了，但是这时候的json在id=30以后的数据数据库里面没有 
 
  


   截图中有30个添加成功   

 你总是再添加，并没有哪里再删除，数据都加了好几遍了   
 你也不看看？  
  

 我知道那里错了，谢谢提醒，原来代码没有错，是我数据库设置的问题。给分结贴，谢谢大家的耐心解答。  
  不是还有下一页吗？ 
 
  


   不是还有下一页吗？  
  
 看到了
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