IOS FMDB+SQL語句

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/**

注意點: 1.看 GIF 效果圖.

2.看連線視圖的效果圖.

3.看實現(xiàn)代碼(直接復制實現(xiàn)效果).

4.看實現(xiàn)代碼MVC架構

*/

一、GIF 效果圖:

二、連線視圖的效果圖:

圖1:

圖2:

圖3:

三、實現(xiàn)代碼:

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1.AppDelegate.m 中的代碼

#import"AppDelegate.h"

#import"ViewController.h"http://主控制器

@interfaceAppDelegate()

@end

@implementationAppDelegate

- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {

//初始化

ViewController*vc = [[ViewControlleralloc]init];

//導航控制器

UINavigationController*nvc = [[UINavigationControlleralloc]initWithRootViewController:vc];

//添加圖

self.window.rootViewController= nvc;

returnYES;

}

================================

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2.導入第三方數(shù)據(jù)庫 FMDB 框架包

下載地址:https://github.com/ccgus/fmdb

注意:要導入 libsqlite3.tbd 包 (詳情請看上面圖3)

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3.在 Other 模塊中添加業(yè)務處理層處理 SQLite 語句

注意:如果現(xiàn)在拷貝到項目會報錯-->原因是其他 MVC 模塊中的類沒有實現(xiàn)

控制器1

.h:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import

#import"Model.h"

#import"FMDatabase.h"

@interfaceLoadData :NSObject

//單列類

+(instancetype)sharlLoadData;

//添加元素

-(void)AddsharlLoadData:(Model*)model;

//查詢

-(NSMutableArray*)Marr;

//刪除元素

-(void)deleteharlLoadData:(Model*)model;

//修改元素

-(void)UPsharlLoadData:(Model*)model;

@end

控制器1

.M:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import"LoadData.h"

staticLoadData*ld =nil;

staticFMDatabase*fate;

@implementationLoadData

//單列類

+(instancetype)sharlLoadData{

//靜態(tài)

staticdispatch_once_toneet;

//初始化

dispatch_once(&oneet, ^{

ld= [[LoadDataalloc]init];

//定義初始化

[ldinitA];

});

//返回值

returnld;

}

//初始化

+(instancetype)allocWithZone:(struct_NSZone*)zone{

if(!ld) {

//初始化

ld= [superallocWithZone:zone];

}

returnld;

}

//淺復制

-(id)copy{

returnself;

}

//深復制

-(id)mutableCopy{

returnself;

}

//初始化數(shù)據(jù)庫

-(void)initA{

//創(chuàng)建沙盒

NSString*Ste = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,

NSUserDomainMask,YES)objectAtIndex:0];

//定義文件名

NSString*path = [StestringByAppendingPathComponent:@"HousingInfo.sqlite"];

//初始化

fate= [[FMDatabasealloc]initWithPath:path];

//判斷

if([fateopen]) {

//初始化

[fateexecuteUpdate:@"create table class (ID integer primary

key, fieldMail text, fieldAddress text , fieldConsignee text , fieldPhone text , fieldNote text)"];

[fateclose];

NSLog(@"成功");

}else{

NSLog(@"失敗");

}

}

//添加元素

-(void)AddsharlLoadData:(Model*)model{

//開始

[fateopen];

//初始化

NSString*str = [NSStringstringWithFormat:@"insert

into class values (null , '%@','%@','%@','%@','%@')",model.fieldMail,model.fieldAddress,

model.fieldConsignee,model.fieldPhone,model.fieldNote];

//BOOL值接受

BOOLii = [fateexecuteUpdate:str];

//判斷

if(ii) {

NSLog(@"成功");

}else{

NSLog(@"失敗");

}

//關閉

[fateclose];

}

//查詢

-(NSMutableArray*)Marr{

//初始化

NSMutableArray*marr = [NSMutableArraynew];

//開始

[fateopen];

//初始化

FMResultSet*Set = [[FMResultSetalloc]init];

//使用set接受

Set = [fateexecuteQuery:@"select * from class"];

//判斷

while([Setnext]) {

//初始化

Model*mm = [Modelnew];

//鏈接

mm.fieldMail= [SetstringForColumn:@"fieldMail"];

mm.fieldAddress = [Set stringForColumn:@"fieldAddress"];

mm.fieldConsignee = [Set stringForColumn:@"fieldConsignee"];

mm.fieldPhone = [Set stringForColumn:@"fieldPhone"];

mm.fieldNote = [Set stringForColumn:@"fieldNote"];

mm.ID = [Set intForColumn:@"ID"];

//添加到數(shù)組

[marr addObject:mm];

}

//關閉

[fate close];

//返回值

returnmarr;

}

//刪除元素

-(void)deleteharlLoadData:(Model *)model{

//開始

[fate open];

//初始化

NSString *str = [NSString stringWithFormat:@"delete from class where ID = '%ld' ",model.ID];

//BOOL值接受

BOOLii = [fate executeUpdate:str];

//判斷

if(ii) {

NSLog(@"成功");

}else{

NSLog(@"失敗");

}

//關閉

[fate close];

}

//修改元素

-(void)UPsharlLoadData:(Model *)model{

//開始

[fate open];

//初始化

NSString *str = [NSString stringWithFormat:@"update

class set fieldMail = '%@',fieldAddress = '%@',fieldConsignee =

'%@',fieldPhone = '%@',fieldNote = '%@' where ID = '%ld'",model.fieldMail,model.fieldAddress,model.fieldConsignee,

model.fieldPhone,model.fieldNote,model.ID]

//BOOL值接受

BOOLii = [fate executeUpdate:str];

//判斷

if(ii) {

NSLog(@"成功");

}else{

NSLog(@"失敗");

}

//關閉

[fate close];

}

@end

================ ? ? ================

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4.MVC-->C模塊

控制器1 -主控制器 ?.m:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import"ViewController.h"

#import"LoadData.h"http://業(yè)務處理SQLite

#import"Model.h"http://保存數(shù)據(jù)

#import"MyTableViewCell.h"http://主控制器cell

#import"UpViewController.h"http://修改信息控制器

#import"AddViewController.h"http://添加信息控制器

@interfaceViewController(){

UITableView*tabele;

NSMutableArray*marr;

}

@end

@implementationViewController

//將要顯示

-(void)viewWillAppear:(BOOL)animated{

//查詢

marr= [[LoadDatasharlLoadData]Marr];

//刷新

[tabelereloadData];

}

- (void)viewDidLoad {

[superviewDidLoad];

//定義標題

self.title=@"信息查詢系統(tǒng)";

//初始化

tabele= [[UITableViewalloc]initWithFrame:self.view.framestyle:

UITableViewStylePlain];

//添加協(xié)議

tabele.delegate=self;

tabele.dataSource=self;

//添加到試圖上

[self.viewaddSubview:tabele];

//定義按鈕

UIBarButtonItem*right = [[UIBarButtonItemalloc]

initWithTitle:@"添加"style:UIBarButtonItemStylePlain

target:selfaction:@selector(click)];

//添加到導航調(diào)試

self.navigationItem.rightBarButtonItem=

right;

}

-(void)click{

//初始化

AddViewController*add = [AddViewControllernew];

//跳轉(zhuǎn)

[self.navigationControllerpushViewController:addanimated:YES];

}

//行數(shù)

-(NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section{

returnmarr.count;

}

-(UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath{

//初始化

MyTableViewCell*cell = [tableViewdequeueReusableCellWithIdentifier:@"CELL"];

//復用池

if(!cell) {

//初始化‘

cell = [[MyTableViewCellalloc]initWithStyle:

UITableViewCellStyleSubtitlereuseIdentifier:@"CELL"];

}

//初始化

Model*mm =marr[indexPath.row];

//添加到表格上

cell.fieldMail.text= mm.fieldMail;

cell.fieldAddress.text= mm.fieldAddress;

cell.fieldConsignee.text= mm.fieldConsignee;

cell.fieldPhone.text= mm.fieldPhone;

cell.fieldNote.text= mm.fieldNote;

//返回值

returncell;

}

//刪除

-(void)tableView:(UITableView*)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle

forRowAtIndexPath:(NSIndexPath*)indexPath{

//添加

Model*mm? =marr[ indexPath.row];

//刪除

[[LoadDatasharlLoadData]deleteharlLoadData:mm];

[marr removeObjectAtIndex:indexPath.row];

//刷新

[tabele reloadData];

}

//跳轉(zhuǎn)

-(void)tableView:(UITableView *)tableView

didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

//初始化

UpViewController *up = [UpViewController new];

//添加

up.mm = marr[indexPath.row];

//修改

[[LoadData sharlLoadData]UPsharlLoadData:up.mm];

//跳轉(zhuǎn)

[self.navigationController pushViewController:up animated:YES];

}

@end

================================

控制器2--添加信息控制器 .m:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import"AddViewController.h"

#import"Model.h"

#import"LoadData.h"

@interfaceAddViewController()

//郵件

@property(strong,nonatomic)IBOutletUITextField*fieldMail;

//收貨地址

@property(strong,nonatomic)IBOutletUITextField*fieldAddress;

//收貨人

@property(strong,nonatomic)IBOutletUITextField*fieldConsignee;

//電話

@property(strong,nonatomic)IBOutletUITextField*fieldPhone;

//備注

@property(strong,nonatomic)IBOutletUITextField*fieldNote;

//點擊添加信息

- (IBAction)sss:(id)sender;

@end

@implementationAddViewController

- (void)viewDidLoad {

[superviewDidLoad];

}

- (IBAction)sss:(id)sender {

//初始化

Model*mm = [Modelnew];

//鏈接

mm.fieldMail=self.fieldMail.text;

mm.fieldAddress=self.fieldAddress.text;

mm.fieldConsignee=self.fieldConsignee.text;

mm.fieldPhone=self.fieldPhone.text;

mm.fieldNote=self.fieldNote.text;

//添加到數(shù)據(jù)庫

[[LoadDatasharlLoadData]AddsharlLoadData:mm];

//跳轉(zhuǎn)

[self.navigationControllerpopViewControllerAnimated:YES];

}

@end

================================

控制器3--修改信息控制器 .h:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import

@classModel;

@interfaceUpViewController :UIViewController

//定義屬性

@property(nonatomic,strong)Model*mm;

@end

控制器3--修改信息控制器 .m:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import"UpViewController.h"

#import"LoadData.h"

#import"Model.h"

@interfaceUpViewController()

//郵件

@property(strong,nonatomic)IBOutletUITextField*fieldMail;

//收貨地址

@property(strong,nonatomic)IBOutletUITextField*fieldAddress;

//收貨人

@property(strong,nonatomic)IBOutletUITextField*fieldConsignee;

//電話

@property(strong,nonatomic)IBOutletUITextField*fieldPhone;

//備注

@property(strong,nonatomic)IBOutletUITextField*fieldNote;

//點擊修改信息

- (IBAction)ssss:(id)sender;

@end

@implementationUpViewController

- (void)viewDidLoad {

[superviewDidLoad];

//將數(shù)據(jù)添加到修改頁面

self.fieldMail.text =self.mm.fieldMail;

self.fieldAddress.text =self.mm.fieldAddress;

self.fieldConsignee.text =self.mm.fieldConsignee;

self.fieldPhone.text =self.mm.fieldPhone;

self.fieldNote.text =self.mm.fieldNote;

}

- (IBAction)ssss:(id)sender {

//初始化

Model *mm =self.mm;

//鏈接

mm.fieldMail =self.fieldMail.text;

mm.fieldAddress =self.fieldAddress.text;

mm.fieldConsignee =self.fieldConsignee.text;

mm.fieldPhone =self.fieldPhone.text;

mm.fieldNote =self.fieldNote.text;

//添加

[[LoadData sharlLoadData]UPsharlLoadData:mm];

//跳轉(zhuǎn)

[self.navigationController popViewControllerAnimated:YES];

}

@end

================================

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5.MVC-->V模塊

控制器1-- .h:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import

@interfaceMyTableViewCell :UITableViewCell

//郵件

@property(nonatomic,strong)UILabel*fieldMail;

//收貨地址

@property(nonatomic,strong)UILabel*fieldAddress;

//收貨人

@property(nonatomic,strong)UILabel*fieldConsignee;

//電話

@property(nonatomic,strong)UILabel*fieldPhone;

//備注

@property(nonatomic,strong)UILabel*fieldNote;

@end

控制器1-- .m:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import"MyTableViewCell.h"

@implementationMyTableViewCell

//重寫父類方法

-(instancetype)initWithStyle:(UITableViewCellStyle)style

reuseIdentifier:(NSString*)reuseIdentifier{

//判斷

if([superinitWithStyle:stylereuseIdentifier:reuseIdentifier])

{

//添加到

[self.contentViewaddSubview:self.fieldMail];

[self.contentViewaddSubview:self.fieldAddress];

[self.contentViewaddSubview:self.fieldConsignee];

[self.contentViewaddSubview:self.fieldPhone];

[self.contentViewaddSubview:self.fieldNote];

}

//返回值

returnself;

}

//懶加載-//郵件

-(UILabel*)fieldMail{

//判斷

if(!_fieldMail) {

//初始化

_fieldMail= [[UILabelalloc]initWithFrame:CGRectMake(5,5,80,44)];

}

//返回值

return_fieldMail;

}

//懶加載-//收貨地址

-(UILabel*)fieldAddress{

//判斷

if(!_fieldAddress) {

//初始化

_fieldAddress= [[UILabelalloc]initWithFrame:CGRectMake(80,5,80,44)];

}

//返回值

return_fieldAddress;

}

//懶加載=//收貨人

-(UILabel*)fieldConsignee{

//判斷

if(!_fieldConsignee) {

//初始化

_fieldConsignee= [[UILabelalloc]initWithFrame:CGRectMake(155,5,80,44)];

}

//返回值

return_fieldConsignee;

}

//懶加載--//電話

-(UILabel*)fieldPhone{

//判斷

if(!_fieldPhone) {

//初始化

_fieldPhone = [[UILabel alloc]initWithFrame:CGRectMake(220,5,80,44)];

}

//返回值

return_fieldPhone;

}

//懶加載

-(UILabel *)fieldNote{

//判斷

if(!_fieldNote) {

//初始化

_fieldNote = [[UILabel alloc]initWithFrame:CGRectMake(305,5,80,44)];

}

//返回值

return_fieldNote;

}

- (void)awakeFromNib {

[superawakeFromNib];

}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {

[supersetSelected:selected animated:animated];

}

@end

================================

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6.MVC-->M模塊

控制器1-- .h:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import

@interfaceModel :NSObject

//定義屬性

//郵箱

@property(nonatomic,copy)NSString*fieldMail;

//收貨地址

@property(nonatomic,copy)NSString*fieldAddress;

//收貨人

@property(nonatomic,copy)NSString*fieldConsignee;

//電話

@property(nonatomic,copy)NSString*fieldPhone;

//備注

@property(nonatomic,copy)NSString*fieldNote;

//

@property(nonatomic,assign)NSIntegerID;

@end

================================

控制器1--

.m:

//? Created by石虎on 2017/7/6.

//? Copyright ? 2017年shihu. All rights reserved.

//

#import"Model.h"

@implementationModel

@end

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