mongoDB
func resignRoutes() {
// mongoDB数据库test，collection为test的数据展示
routes.add(method: .get, uri: "/mongodb/test") { (req, resp) in
resp.appendBody(string: collectionName(name: "test"))
resp.completed()
}
// mongoDB数据库test，collection为info的数据展示
routes.add(method: .get, uri: "/mongodb/info") { (req, resp) in
resp.appendBody(string: collectionName(name: "info"))
resp.completed()
}
// 表单提交，向collection为info中添加数据
routes.add(method: .post, uri: "/mongodb/add") { (req, resp) in
do {
// 启动数据库
let mongodb = try MongoClient(uri: "mongodb://localhost")
// 获取数据库
let database = mongodb.getDatabase(name: "test")
// 获取collection
let collection = database.getCollection(name: "info")
defer {
collection?.close()
database.close()
mongodb.close()
}
// 处理请求参数，格式化
let params:[(String,String)] = req.postParams
var json = "{"
for param in params {
let str = "\"" + param.0 + "\"" + ":" + "\"" + param.1 + "\"" + ","
json.append(str)
}
let range = Range<String.Index>(json.index(json.endIndex, offsetBy: -1)..<json.endIndex)
json.replaceSubrange(range, with: "}")
let bson:BSON = try BSON(json: json)
let result = collection?.insert(document: bson)
resp.appendBody(string: result.debugDescription)
resp.completed()
} catch {
print(error)
}
}
server.addRoutes(routes)
}
func collectionName(name:String) -> String{
do {
// 1.连接数据库
let client = try MongoClient(uri: "mongodb://localhost")
// 1.获取数据库名字
print(client.databaseNames())
// 2.获取指定名称的数据库
let db = client.getDatabase(name: "test")
// 2.获取数据库collection名称
print(db.collectionNames())
// 3.获取指定名称collection
let collection = db.getCollection(name: name)
defer{
// 在该请求结束时确保关闭collection,db,client
collection?.close()
db.close()
client.close()
}
// 查询数据,返回查询游标
let find = collection?.find(query: BSON())
var arr:[[String:Any]] = [[String:Any]]()
for fin in find! {
let encode = fin.asString
// json字符串解码
let decode = try encode.jsonDecode() as! [String:Any]
arr.append(decode)
}
let result = ["message":arr]
// 字典数据编码为json字符串
let jsonStr = try result.jsonEncodedString()
return jsonStr
} catch {
print(error)
return ""
}
}
MySQL
fileprivate let mysql_host = "localhost"
fileprivate let mysql_user = "root"
fileprivate let mysql_pwd = ""
fileprivate let mysql_db = "test"
fileprivate let mysql_socket = "/tmp/mysql.sock"
func resignRoutes() {
routes.add(method: .get, uri: "/mysql") { (req, resp) in
let dataMysql = MySQL() // create an instance of mySQL to work with
// connect to database
let connect = dataMysql.connect(host: mysql_host, user: mysql_user, password: mysql_pwd, db: mysql_db, socket: mysql_socket)
guard connect else {
// failed to connect database
print(dataMysql.errorMessage())
return
}
defer {
// close database when already used
dataMysql.close()
}
// create tables
let sql = "create table if not exists person (id integer primary key AUTO_INCREMENT, name varchar(50), age int)"
if (dataMysql.query(statement: sql)){
print("Success")
resp.appendBody(string: "connect mysql success!")
resp.completed()
}
}
routes.add(method: .get, uri: "/mysql/add") { (req, resp) in
let dataMysql = MySQL()
let connect = dataMysql.connect(host: mysql_host, user: mysql_user, password: mysql_pwd, db: mysql_db, socket: mysql_socket)
guard connect else {
print(dataMysql.errorMessage())
return
}
defer {
dataMysql.close()
}
let name:String = req.param(name: "name") ?? ""
let age:Int = Int(req.param(name: "age") ?? "0")!
let sql = "insert into person (name,age) values (\(name),\(age))"
if (dataMysql.query(statement: sql)){
resp.appendBody(string: "insert person success")
} else {
resp.appendBody(string: "fail to insert person")
}
resp.completed()
}
routes.add(method: .get, uri: "/mysql/query") { (req, resp) in
let dataMysql = MySQL()
let connect = dataMysql.connect(host: mysql_host, user: mysql_user, password: mysql_pwd, db: mysql_db, socket: mysql_socket)
guard connect else {
resp.appendBody(string: dataMysql.errorMessage())
resp.completed()
return
}
defer {
dataMysql.close()
}
let sql = "select * from person"
if(dataMysql.query(statement: sql)){
let results = dataMysql.storeResults()
var person:[[String:Any]] = [[String:Any]]()
// 数据查询
results?.forEachRow(callback: { (element) in
let person_id:Int = Int(element[0] ?? "0")!
let person_name:String = element[1]!
let person_age:Int = Int(element[2] ?? "0")!
person.append(["id":person_id,"name":person_name,"age":person_age])
})
let respResult = ["psersons":person]
do {
try resp.appendBody(string: respResult.jsonEncodedString())
} catch {
print(error)
}
} else {
resp.appendBody(string: "操作出现错误")
}
resp.completed()
}
server.addRoutes(routes)
}
SQLite
// 需要在产品目录下创建db文件夹，其他路径没有尝试过
fileprivate let sqlite_dbpath = "./db/database"
func resignRoutes() {
routes.add(method: .get, uri: "/sqlite3") { (req, resp) in
do {
let sqlite = try SQLite(sqlite_dbpath)
defer {
sqlite.close()
}
let sql = "create table if not exists person (id integer primary key AUTOINCREMENT, name text, age int)"
try sqlite.execute(statement: sql)
resp.appendBody(string: "Success!")
resp.completed()
} catch {
print(error)
}
}
routes.add(method: .get, uri: "/sqlite3/add") { (req, resp) in
do {
let sqlite = try SQLite(sqlite_dbpath)
let person_name:String = req.param(name: "name") ?? ""
let person_age:Int = Int(req.param(name: "age") ?? "0")!
let sql = "insert into person (name, age) values (\(person_name),\(person_age))"
try sqlite.execute(statement: sql)
resp.appendBody(string: "Success!")
resp.completed()
} catch {
print(error)
}
}
routes.add(method: .get, uri: "/sqlite3/query") { (req, resp) in
do {
let sqlite = try SQLite(sqlite_dbpath)
let sql = "select * from person"
var result:[[String:Any]] = [[String:Any]]()
try sqlite.forEachRow(statement: sql, handleRow: { (stmt, index) in
let id:Int = stmt.columnInt(position: 0)
let name:String = stmt.columnText(position: 1)
let age:Int = stmt.columnInt(position: 2)
let temp:[String:Any] = ["id":id,"name":name,"age":age]
result.append(temp)
})
let lastResult = ["persons":result]
try resp.appendBody(string: lastResult.jsonEncodedString())
resp.completed()
} catch {
print(error)
}
}
server.addRoutes(routes)
}
网友评论