我正在尝试在node.js中使用多个参数执行获取。我有以下文件
entry.routes.js
module.exports = app => {
const entry = require("../controlers/entry.controller.js");
// Retrieve a single Entry with Id
app.get("/entry/:Id", entry.findOne);
app.get("/energy/api/ActualTotalLoad/:AreaName/:Resolution/:Year/:Month/:Day", entry.find1a);
};
ActualTotalLoad.model.js
const sql = require("./db.js");
// constructor
const Entry = function(entry) {
this.Id=entry.Id
};
Entry.findByPk = (Id, result) => {
sql.query(`SELECT * FROM ActualTotalLoad WHERE Id = ${Id}`, (err, res) => {
if (err) {
console.log("error: ", err);
result(err, null);
return;
}
if (res.length) {
console.log("found entry: ", res[0]);
result(null, res[0]);
return;
}
// not found Customer with the id
result({ kind: "not_found" }, null);
});
};
Entry.findBy1a = (AreaName,Resolution,Year,Month,Day,result) => {
sql.query(`SELECT AreaName,AreaTypeCodeId,MapCodeId,ResolutionCodeId,Year,Month,Day FROM ActualTotalLoad WHERE AreaName = ${AreaName} AND ResolutionCodeId = ${Resolution} AND Year = ${Year} AND Month = ${Month} AND Day = ${Day}` , (err, res) => {
if (err) {
console.log("error: ", err);
result(err, null);
return;
}
if (res.length) {
console.log("found entry: ", res[0]);
result(null, res[0]);
return;
}
// not found Customer with the id
result({ kind: "not_found" }, null);
});
};
module.exports=Entry;
和文件:entry.controller.js
const Entry = require("../models/ActualTotalLoad.model.js");
// Find a single Customer with a customerId
exports.findOne = (req, res) => {
Entry.findByPk(req.params.Id, (err, data) => {
if (err) {
if (err.kind === "not_found") {
res.status(404).send({
message: `Not found Entry with id ${req.params.Id}.`
});
} else {
res.status(500).send({
message: "Error retrieving Entry with id " + req.params.Id
});
}
} else res.send(data);
});
};
exports.find1a = (req, res) => {
Entry.findBy1a(req.params.AreaName,req.params.Resolution,req.params.Year,req.params.Month,req.params.Day, (err, data) => {
if (err) {
if (err.kind === "not_found") {
res.status(404).send({
message: `Not found Entry with AreaName ${req.params.AreaName}.`
});
} else {
res.status(500).send({
message: "Error retrieving Entry with AreaName " + req.params.AreaName
});
}
} else res.send(data);
});
};
我正在尝试执行此操作以获得http:// localhost:8765 / energy / api / ActualTotalLoad / DE-AT-LU / 7/2018/1/4
但是我收到错误“消息”:“使用AreaName DE-AT-LU检索条目时出错”
我究竟做错了什么?
您应该像这样更改WHERE语句
SELECT ... WHERE AreaName = "${AreaName}" AND ResolutionCodeId = ${Resolution} AND Year = ${Year} AND Month = ${Month} AND Day = ${Day}
注意:请注意引号(“ $ {AreaName}”)
数据库模式中的AreaName可能键入为字符串(或文本),因此您需要将搜索条件引用为字符串(用"或引起来')
我认为ResolutionCodeId,Year Month和Day是数字类型,所以它的确定不会说出来了。
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