我想创建一个管理表。从应用程序的输入并将其添加到表。我的管理员类用于获取和设置值。 我尝试了很多,但无法确定问题。即使我没有离开任何字段为空,为什么我会得到SQLlite约束错误(代码= 19)?
这是从我的数据库Helper类
@Override
public void onCreate(SQLiteDatabase db) {
String query_create_administrator="create table "+TBL_ADMINISTRATOR+" ("+ADMIN_ID+" INTEGER PRIMARY KEY, "+ADMIN_NAME+
" TEXT, "+ADMIN_MAIL+" TEXT, "+ADMIN_PASSWORD+" TEXT, "+ADMIN_CONTACT+" TEXT, "+ADMIN_ADDRESS+" TEXT, "+
ADMIN_ROLE+" TEXT, "+STATUS+" TEXT)";
String query_create_student="create table "+TBL_STUDENT+" ("+STUDENT_ID+" INTEGER PRIMARY KEY, "
+STUDENT_PID+" TEXT, "+STUDENT_NAME+" TEXT, "+STUDENT_MAIL+" TEXT, "+STUDENT_PASSWORD+" TEXT, "
+STUDENT_CONTACT+" TEXT, "+STUDENT_ADDRESS+" TEXT, "+STUDENT_COURSE+" TEXT, "+STUDENT_YEAR+" TEXT, "
+STUDENT_BRANCH+" TEXT)";
db.execSQL(query_create_administrator);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
public long registerAdmin(Administrator obj){
SQLiteDatabase db=getWritableDatabase();
ContentValues cv=new ContentValues();
cv.put(ADMIN_ID,obj.getId());
cv.put(ADMIN_NAME,obj.getName());
cv.put(ADMIN_MAIL,obj.getMail());
cv.put(ADMIN_PASSWORD,obj.getPassword());
cv.put(ADMIN_CONTACT,obj.getContact());
cv.put(ADMIN_ADDRESS,obj.getAddress());
cv.put(ADMIN_ROLE,obj.getRole());
cv.put(STATUS,obj.getStatus());
db.insert(TBL_ADMINISTRATOR,null,cv);
long done=3;
return done;
}
这是从活动类中的方法
public void register(View v){
long check=0;
obj=new Administrator();
SchoolDBHandler db=new SchoolDBHandler(this);
String n,m,p,c,a;
n=name.getText().toString();
m=mail.getText().toString();
p=pass.getText().toString();
c=contact.getText().toString();
a=address.getText().toString();
if(n.equalsIgnoreCase("")||m.equalsIgnoreCase("")||p.equalsIgnoreCase("")||c.equalsIgnoreCase("")||a.equalsIgnoreCase(""))
{
Toast.makeText(getApplicationContext(),"All fields are mandatory",Toast.LENGTH_SHORT).show();
}
else {
obj.setName(n);
obj.setMail(m);
obj.setPassword(p);
obj.setContact(c);
obj.setAddress(a);
obj.setStatus("Active");
if(role_select2!=null)obj.setRole(role_select2);
check=db.registerAdmin(obj);
if(check>0) {
resetEditTextxs();
Toast.makeText(getApplicationContext(),"Successfully Created",Toast.LENGTH_SHORT).show();
}
else Toast.makeText(getApplicationContext(),"Error",Toast.LENGTH_SHORT).show();
}
}
这是错误日志:
E /数据库:插入状态错误=活动地址= AAA电子邮件= AAA名称= AAA角色=父级联系人= 1211 eid = 0通过= AAA andr oid.database.sqlite.SQLiteConstraintException:错误代码19:约束失败 at android.database.sqlite.SQLiteStatement.native_execute(Native Method) at android.database.sqlite.SQLiteStatement.execute(SQLiteStatement.java:61) at android (SQLiteDatabase.java:1426) at com.thebitshoes.classproject.dao.SchoolDBHandler.registerAdmin(SchoolDBHandler.java(SQLiteDatabase.java:1482) :191) at com.thebitshoes.classproject.AdminSignUp.register(AdminSignUp.java:109) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:507) at android.support.v7.app.AppCompatViewInflater $ DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) at android.view.View.performClick( View.java:2485) 在android.view.View $ PerformClick.run(View.java:9080) 在android.os.Handler.handleCallback(Handler.java:587) 在android.os.Handler.dispatchMessage( Handler.java:92) at android.os.Looper.loop(Looper.java:130) at android.app.ActivityThread.main(ActivityThread.java:3683) at java.lang.reflect.Method.invokeNative(本地方法) at java.lang.reflect.Method.invoke(Method.java:507) at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:839) at com.android.internal.os。 ZygoteInit.main(ZygoteInit.java:597) 在dalvik.system.NativeStart.main(本机方法)
什么是'eid = 0'? –
我认为你可能已经有一个条目,其中eid = 0,并且你试图用0添加另一个条目。 – MikeT
ADMIN_ID =“eid”; – ThePercept