错误：ER_BAD_FIELD_ERROR：节点js中“字段列表”中的未知列“asd123”

当我尝试在phpmyadmin中更新表时收到此错误

谁能告诉我什么是错的请

这是桌子

create table ms_registereduser(userID Varchar(10),socketID Varchar(255)); 

这是我的server.js

 var http = require("http"); var mysql = require('mysql'); var connection = mysql.createConnection({ host : 'localhost', user : 'root', password : '', database : 'pushnotificationdb' }); var userID = "1234567890", socketID = "asd123"; http.createServer(function(request, response) { response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end(); }).listen(1111); connection.connect(); connection.query('callpushnotificationdb.spUpdateSocketID('+userID+','+socketID+');').on('end',function() { console.log('User '+ userID+' has updated his socketID to '+socketID); }); connection.end(); 

这是我的spUpdateSocketID以'//'作为分隔符

 DROP PROCEDURE IF EXISTS spUpdateSocketID// CREATE PROCEDURE spUpdateSocketID(IN userID Varchar(10) ,IN socketID Varchar(255)) BEGIN set @userID = userID; set @socketID = socketID; set @s = CONCAT('UPDATE ms_registereduser SET socketID = @socketID WHERE userID = @userID'); PREPARE stmt FROM @s; EXECUTE stmt; DEALLOCATE PREPARE stmt; END// 

如果我尝试像这样调用phpmyadmin中的过程

 call pushnotificationdb.spUpdateSocketID('1234567890','asd123'); 

它的工作原理，但如果我尝试从node.js调用它，它给了我这样的错误错误：ER_BAD_FIELD_ERROR：'字段列表'中的未知列'asd123'，请帮助

Answer 1

尝试下面的查询，将variables“+ userID +”和“+ socketID +”修改为“'+ userID +'”和“'+ socketID +'”：

 connection.query( 'callpushnotificationdb.spUpdateSocketID("'+userID+'","'+socketID+'");' ) .on('end',function(){ console.log('User '+ userID+' has updated his socketID to '+socketID); }); 

Answer 2

尝试这个：

 DROP PROCEDURE IF EXISTS spUpdateSocketID// CREATE PROCEDURE spUpdateSocketID(IN _userID VARCHAR(10) ,IN _socketID VARCHAR(255)) BEGIN UPDATE ms_registereduser SET socketID = _socketID WHERE userID = _userID; END// 

重新写下你的程序，并尝试运行它：

 DROP PROCEDURE IF EXISTS spUpdateSocketID// CREATE PROCEDURE spUpdateSocketID(IN userID VARCHAR(10) ,IN socketID VARCHAR(255)) BEGIN SET @s = CONCAT("UPDATE ms_registereduser SET socketID = '", socketID, "' WHERE userID = '", userID, "'"); PREPARE stmt FROM @s; EXECUTE stmt; DEALLOCATE PREPARE stmt; END//