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首先是保存数据 func saveData(){
let key = "name1"
let value = "liu"
let valueData = value.data(using: String.Encoding.utf8,allowLossyConversion: false)
let service = Bundle.main.bundleIdentifier!
//kSecAttrService该键值通常表示为应用bundle标识符的字符串
//kSecAttrAccount表示存贮数据对象的键，一般是账号
//kSecValueData该值通常是 kSecAttrAccount对应的数值
print("valueData:\(valueData)")
let secItem = [
kSecClass as NSString:kSecClassGenericPassword as String,
kSecAttrService as String : service,
kSecAttrAccount as String : key,
kSecValueData as String : valueData!
] as NSDictionary
var requestResult : AnyObject?
let status = Int(SecItemAdd(secItem,&requestResult))
switch status {
case Int(errSecSuccess):
print("成功")
case Int(errSecDuplicateItem):
print("重复插入")
default:
print("error")
}
}
查找数据的方式：直接查找value
let keyToSearchFor = "name1"
let service = Bundle.main.bundleIdentifier!
let query = [
kSecClass as NSString:kSecClassGenericPassword as String,
kSecAttrService as String : service,
kSecAttrAccount as String : keyToSearchFor,
kSecReturnData as String : kCFBooleanTrue,
] as NSDictionary
var valueAttributes : AnyObject?
let results = SecItemCopyMatching(query, &valueAttributes)
if results == Int(errSecSuccess) {
if let resultsData = valueAttributes as? Data{
let value = String(data: resultsData, encoding: String.Encoding.utf8)
print("---------------------------- \(value)")
}
}
查找其他的数据 let keyToSearchFor = "name1"
let service = Bundle.main.bundleIdentifier!
let query = [
kSecClass as NSString:kSecClassGenericPassword as String,
kSecAttrService as String : service,
kSecAttrAccount as String : keyToSearchFor,
kSecReturnAttributes as String : kCFBooleanTrue,
] as NSDictionary
var valueAttributes : AnyObject?
let results = SecItemCopyMatching(query, &valueAttributes)
if results == Int(errSecSuccess) {
if let resultsDic = valueAttributes as? NSDictionary{
let username = resultsDic[kSecAttrAccount as String] as? String//name1
let accesGroup = resultsDic[kSecAttrAccessGroup as String] as? String
let createDate = resultsDic[kSecAttrCreationDate as String] as? Date//日期
let serviceVlue = resultsDic[kSecAttrService as String] as? String
print("username:\(username) accesGroup:\(accesGroup) createDate:\(createDate) serviceVlue:\(serviceVlue)")
}
}
warn: kSecReturnAttributes如果需要获取置顶属性的值，Birkin创建日期和修改日期，则需要向自添加这个属性，如果获取要是串存储的值，则需要是使用kSecReturnData 数据更新： let keyToSearchFor = "name1"
let service = Bundle.main.bundleIdentifier!
let query = [
kSecClass as NSString:kSecClassGenericPassword as String,
kSecAttrService as String : service,
kSecAttrAccount as String : keyToSearchFor,
] as NSDictionary
var valueAttributes : AnyObject?
let results = SecItemCopyMatching(query, &valueAttributes)
if results == Int(errSecSuccess) {
let newData = "newdata".data(using: String.Encoding.utf8,allowLossyConversion: false)
let update = [
kSecValueData as String:newData!
] as NSDictionary
let updateed = SecItemUpdate(query, update)
print("---------------------???:\(updateed)")
if updateed == Int(errSecSuccess){
print("更新成功")
}else{
print("更新失败")
}
}else{
print("没有查询到")
}
数据删除： let keyToSearchFor = "name1"
let service = Bundle.main.bundleIdentifier!
let query = [
kSecClass as NSString:kSecClassGenericPassword as String,
kSecAttrService as String : service,
kSecAttrAccount as String : keyToSearchFor,
] as NSDictionary
let results = SecItemDelete(query)
if results == Int(errSecSuccess) {
print("删除成功")
}else{
print("删除失败")
}
warn:如果想多个项目使用一个chain，可以使用kSecAttrAccessGroup，但是前提是多个项目在一个team里面，这个配置的team的名字，boundleid就需要使用写入数据应用的bundle id就不能是当前应用的bundle id了 kSecAttrAccessGroup as String:""
对iCloud中钥匙串的读写可以使用在添加查询的字典中加入 kSecAttrSynchronizable as String:kCFBooleanTrue
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