//记得先导入第三方类 sqlite3
#import <UIKit/UIKit.h>
#import <sqlite3.h>
@interface ViewController : UIViewController
{
sqlite3 *_dataBase;
}
@property (retain,nonatomic) IBOutlet UITextView *textView;
) IBOutlet UITextField *textFieldName;
) IBOutlet UITextField *textFieldAge;
) IBOutlet UITextField *textFieldSex;
) IBOutlet UITextField *textFieldiID;
- (IBAction)saveButton:(id)sender;
- (IBAction)getButton:(id)sender;
- (BOOL)initDataBase:(NSString *)dbName;
- (BOOL)creatChannelsTable;
- (BOOL) insertOneChannel:(NSString *)name
cAge:(NSInteger )age
caddress:(NSString *)addr
cSex:(NSString *)sex;
//返回值 可变数组 （数组内存放多个字典 每个字典存储表中的一行的数据）
- (NSMutableArray *)getAlldata;
@end
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[self initDataBase:@"member.db"];
}
- (IBAction)saveButton:(id)sender
{
NSString *pName = self.textFieldName.text;
NSInteger pAge = [self.textFieldAge.text integerValue];
NSString *pAD = self.textFieldiID.text;
NSString *pSex = self.textFieldSex.text;
[self insertOneChannel:pName cAge:pAge caddress:pAD cSex:pSex];
}
- (IBAction)getButton:(id)sender
{
NSMutableString *pResultStr = [NSMutableString string];
NSMutableArray *pArr = [self getAlldata];
for (int i =0; i < pArr.count; i++)
{
NSMutableDictionary *pTempDic = [pArr objectAtIndex:i];
[pResultStr appendFormat:@"%@",[pTempDic objectForKey:@"name"]];
[pResultStr appendString:@"\t"];
[pResultStr appendFormat:@"%@",[pTempDic objectForKey:@"age"]];
[pResultStr appendString:@"\t"];
[pResultStr appendFormat:@"%@",[pTempDic objectForKey:@"add"]];
[pResultStr appendString:@"\t"];
[pResultStr appendFormat:@"%@",[pTempDic objectForKey:@"sex"]];
[pResultStr appendString:@"\n"];
}
self.textView.text = pResultStr;
}
/*
接口说明
返回值：数据是否创建成功
*/
- (BOOL)initDataBase:(NSString *)dbName
{
//查找沙河路径
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
NSString *filePath = [paths objectAtIndex:0];
NSString *path = [filePath stringByAppendingPathComponent:dbName];
NSLog(@"path = %@",path);
//打开文件
if (sqlite3_open([path UTF8String],&_dataBase) != sqlITE_OK)
{
NSAssert(NO,@"打开数据失败");
return NO;
}
NSLog(@"打开数据成功");
/*
创建表 待实现
*/
[self creatChannelsTable];
return YES;
}
- (BOOL)creatChannelsTable
{
/*创建表得sql语句*/
char *sql = "create table if not exists member(id integer primary key autoincrement,name text,age integer,addr text,sex text)";
sqlite3_stmt *stmt;
//判断编译语句结果是不是成功
if (sqlite3_prepare_v2(_dataBase,sql,-1,&stmt,nil) != sqlITE_OK)
{
NSLog(@"创建表的sql语句编译失败");
return NO;
}
NSLog(@"创建表的sql语句编译成功");
//结果集中返回得列数
int success = sqlite3_step(stmt);
//判断是不是完成执行
if (success != sqlITE_DONE)
{
NSLog(@"创建表失败");
return NO;
}
NSLog( @" 创建表成功");
return YES;
}
返回值 ： 插入数据是不是成功
参数：往表内要插入的数据 对应绑定参数
*/
- (BOOL) insertOneChannel:(NSString *)name
cAge:(NSInteger )age
caddress:(NSString *)addr
cSex:(NSString *)sex
{
sqlite3_stmt *stmt;
char *sql = "INSERT OR REPLACE INTO member(name,age,addr,sex) VALUES(?,?,?)";
int success = sqlite3_prepare_v2(_dataBase,nil);
if (success != sqlITE_OK)
{
NSLog(@"插入参数的sql语句编译失败");
return NO;
}
NSLog(@"插入参数的sql语句编译成功");
sqlite3_bind_text(stmt, 1,[name UTF8String],nil);
sqlite3_bind_int(stmt, 2,age);
sqlite3_bind_text(stmt, 3,[addr UTF8String],nil);
sqlite3_bind_text(stmt,4,[sex UTF8String],-1,nil);
success = sqlite3_step(stmt);
//重新设置一个已经准备好得状态对象
sqlite3_finalize(stmt);
if (success == sqlITE_ERROR)
{
NSLog(@"插入数据失败") ;
return NO;
}
NSLog(@"插入数据成功");
return YES;
}
- (NSMutableArray *)getAlldata
{
NSMutableArray *allDatas =[[[NSMutableArray alloc]init]autorelease];
sqlite3_stmt *stmt = nil;
char *sql = "SELECT * FROM member";
if (sqlite3_prepare_v2(_dataBase,27)"> NSLog(@"读取表中的sql文件编译失败");
return nil;
}
while (sqlite3_step(stmt) == sqlITE_ROW)
{
NSMutableDictionary *tempDic = [[NSMutableDictionary alloc]init];
char *pName = (char *)sqlite3_column_text(stmt,1);
if (pName)
{
[tempDic setObject:[NSString stringWithUTF8String:pName] forKey:@"name"];
}
NSInteger nAge = (int)sqlite3_column_int(stmt,2);
if (nAge)
{
[tempDic setObject:[NSNumber numberWithInteger:nAge] forKey:@"age"];
}
char *pAdd = (char *)sqlite3_column_text(stmt,3);
if (pName)
{
[tempDic setObject:[NSString stringWithUTF8String:pAdd] forKey:@"add"];
}
char *pSex = (char *)sqlite3_column_text(stmt,4);
if (pName)
{
[tempDic setObject:[NSString stringWithUTF8String:pSex] forKey:@"sex"];
}
[allDatas addObject:tempDic];
[tempDic release];
}
sqlite3_finalize(stmt);
return allDatas;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[self.view endEditing:YES];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
- (void)dealloc
{
[_textFieldAge release];
[_textFieldiID release];
[_textFieldName release];
[_textFieldSex release];
[_textView release];
[super dealloc];
}
@end
