The shell generates JSON arrays and inserts them into the database

Preface

Application scenarios ： It needs to be used in actual projects shell Script to automatically insert part of the data in batch , and json Array is a commonly used data type .

** Now there is a batch of data about the floor room number, which needs to be in json Insert the array form into the database .**

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The script content is attached directly below

 Data presentation 
[[email protected] ~]# cat floor.txt 
1601
1612
1705

 The script content 
#!/bin/bash
floors=`cat floor.txt`
declare -a floor_info # Define an empty array 
fid=1 # Definition fid
num=0 # Initialize array subscript 
# Traverse the room numbers and add one to each room number key and value That is to say fid
for floor in $floors
do
	floor_info[$num]={
    \\\"fid\\\":\\\"$fid\\\",\\\"floor\\\":\\\"$floor\\\",\\\"url3d\\\":\\\"\\\"}
	let fid++
	let num++
done
floor_infos=`echo \\\[${
     floor_info[*]}\\\] |sed 's/ /,/g'`
echo $floor_infos

 Execute the script 
[[email protected] ~]# . json.sh 
\[{
    \"fid\":\"1\",\"floor\":\"1601\",\"url3d\":\"\"},{
    \"fid\":\"2\",\"floor\":\"1612\",\"url3d\":\"\"},{
    \"fid\":\"3\",\"floor\":\"1705\",\"url3d\":\"\"}\]
[[email protected] ~]# 

Before all special symbols \ Are used to identify special symbols , Otherwise, in the insert I will make a mistake

 Remember in shell When inserting data in, you also need to add a single quotation mark before \
insert into floor (building_id,building_name,address,floor_info,floor_num,is_del) values(@projectid,'$building_name','$address',\'$floor_infos\',$floors_num,0);