Question

我有一个节点服务来获取所有学生，它检索学生正确，但重复数据如下：

{
"recordsets": [
    [
        {
            "UID": 5,
            "FName": "Ahmed",
            "LName": "Fawzy",
            "Birthdate": "1995-07-10T00:00:00.000Z",
            "CityID": 1,
            "UserTypeID": 2
        }
    ]
],
"recordset": [
    {
        "UID": 6,
        "FName": "Mohammed",
        "LName": "Hassan",
        "Birthdate": "1995-06-14T00:00:00.000Z",
        "CityID": 4,
        "UserTypeID": 2
    }
],
"output": {},
"rowsAffected": [
    3
]
}

我只想检索记录集，现在我不想看到这些重复的数据以及受影响的行所以这是我的代码：

students.js

var db = require("../Core/DB");
exports.getList = function(req,res){
  db.executeSql('select * from [Users] where UserTypeID =2 ',function(data,err){
if(err){
    res.writeHead(500,"Internal error occured!!!",{"Content-Type":"text/html"});
    res.write("<html><head><title>500</title></head><body>500:Internal error details: "+err+"</body></html>");
}
else{
    res.writeHead(200,{"Content-Type":"application/json"});
    res.write(JSON.stringify(data));
}
res.end();
  });  
};

db.js

var sqlDb = require("mssql");
var settings = require("../settings");


exports.executeSql = function (sql, callback)
{
var conn = new sqlDb.ConnectionPool(settings.dbConfig);
conn.connect()
.then(function(){
    var req = new sqlDb.Request(conn);
    req.query(sql)
    .then(function(recordset){
        callback(recordset);
    })
    .catch(function(err){
        console.log(err);
        callback(null,err);
    });
})
.catch(function(err){
    console.log(err);
    callback(null,err);
});
};

以下是我如何调用getlist（）函数：

var http = require("http");
var student = require("../controllers/Students");
var settings = require("../settings");

http.createServer(function(req,res){
switch(req.method){
    case "GET":
    if(req.url === "/")
    {
        res.end();
    }
    else if (req.url === "/students")
    {
        student.getList(req,res);
    }
    break;

Answer 1

尝试更改students.js

中的以下行

res.write(JSON.stringify(data));

到

res.write(JSON.stringify(data.recordsets));

使用GET方法时会出现重复的结果（记录集和记录集）

1 个答案: