android 操作sqllite 数据库

[java] view
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package com.b509.activity.patient.mydoctors.service;

public class Person {

private Integer id;

private String time;

private String describe;

private String illness;

private byte[] pic;

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

public String getTime() {

return time;

}

public void setTime(String time) {

this.time = time;

}

public String getDeccribe() {

return describe;

}

public void setDeccribe(String deccribe) {

this.describe = deccribe;

}

public String getIllness() {

return illness;

}

public void setIllness(String illness) {

this.illness = illness;

}

public byte[] getPic() {

return pic;

}

public void setPic(byte[] pic) {

this.pic = pic;

}

public Person(){

}

public Person(Integer id, String time,String describe,String illness,byte[] pic) {

this.id = id;

this.time = time;

this.describe=describe;

this.illness=illness;

this.pic = pic;

}

public Person( String time,String describe,String illness) {

this.time = time;

this.describe=describe;

this.illness=illness;

}

}

[java] view
plaincopyprint?

package com.b509.activity.patient.mydoctors.service;

import java.util.ArrayList;

import java.util.List;

import android.content.ContentValues;

import android.content.Context;

import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

public class OtherPersonService {

private DBOpenHelper dbOpenHelper;

public OtherPersonService(Context context) {

this.dbOpenHelper = new DBOpenHelper(context);

}

// ILLid time describe illness

public void save(Person person) {

SQLiteDatabase db = dbOpenHelper.getWritableDatabase();

ContentValues values = new ContentValues();

values.put("ILLid", person.getId());

values.put("time", person.getTime());

values.put("describe", person.getDeccribe());

values.put("illness", person.getIllness());

db.insert("ILLNESS", null, values);

db.close();

}

// SQLiteDatabase db = dbOpenHelper.getWritableDatabase();

public void update(Person person) {

// update person set name =? where personid =?

SQLiteDatabase db = dbOpenHelper.getWritableDatabase();

ContentValues values = new ContentValues();

values.put("time", person.getTime());

values.put("describe", person.getDeccribe());

values.put("illness", person.getIllness());

System.out.println(person.getDeccribe());

System.out.println(person.getIllness());

System.out.println(person.getTime());

System.out.println(person.getId());

Integer i = person.getId();

String id_str = String.valueOf(i);

System.out.println(id_str + "把id转化为一个字符串");

db.update("ILLNESS", values, "ILLid=?", new String[] { id_str });

db.close();

}

public void delete(Integer id) {

SQLiteDatabase db = dbOpenHelper.getWritableDatabase();

db.delete("ILLNESS", "ILLid=?", new String[] { id.toString() });

db.close();

}

public List<Person> find2() {

// 如果只对数据进行读取，建议使用此方法

SQLiteDatabase db = dbOpenHelper.getReadableDatabase();

Cursor cursor = db.query("ILLNESS", new String[] { "time", "illness" },

null, null, null, null, "time");

List<Person> persons = new ArrayList<Person>();

// select personid,name from person where personid=? order by ... limit

// 3,5

if (cursor.moveToFirst()) {

String timeill = cursor.getString(cursor.getColumnIndex("time"));

String kindsill = cursor

.getString(cursor.getColumnIndex("illness"));

System.out.println(timeill);

System.out.println(kindsill);

Person person = new Person();

person.setTime(timeill);

person.setIllness(kindsill);

persons.add(person);

db.close();

return persons;

}

return null;

}

public Person find3(int id) {

// 如果只对数据进行读取，建议使用此方法

String str_id = id + "";

SQLiteDatabase db = dbOpenHelper.getReadableDatabase();

Cursor cursor = db.query("ILLNESS", new String[] { "time", "illness",

" describe" }, str_id, null, null, null, "time");

Person person = null;

if (cursor.moveToFirst()) {

String timeill = cursor.getString(cursor.getColumnIndex("time"));

String kindsill = cursor

.getString(cursor.getColumnIndex("illness"));

String disill = cursor.getString(cursor.getColumnIndex("describe"));

System.out.println(timeill);

System.out.println(kindsill);

person = new Person();

person.setTime(timeill);

person.setIllness(kindsill);

person.setDeccribe(disill);

return person;

}

db.close();

return null;

}

public List<Person> find() {

// 如果只对数据进行读取，建议使用此方法

SQLiteDatabase db = dbOpenHelper.getReadableDatabase();

Cursor cursor = db.query("ILLNESS", new String[] { "ILLid", "time",

"illness" }, null, null, null, null, "time");

List<Person> persons = new ArrayList<Person>();

// select personid,name from person where personid=? order by ... limit

// 3,5

if (cursor.moveToFirst()) {

Person person = new Person();

System.out.println("---------------");

String timeill = cursor.getString(cursor.getColumnIndex("time"));

Integer idill = cursor.getInt(cursor.getColumnIndex("ILLid"));

String kindsill = cursor

.getString(cursor.getColumnIndex("illness"));

System.out.println(timeill);

System.out.println(idill);

System.out.println(kindsill);

person.setTime(timeill);

person.setIllness(kindsill);

persons.add(person);

db.close();

return persons;

}

return null;

}

public List<Person> getScrollData(Integer offset, Integer maxResult) {

List<Person> persons = new ArrayList<Person>();

SQLiteDatabase db = dbOpenHelper.getReadableDatabase();

Cursor cursor = db.query("ILLNESS", new String[] { "ILLid", "time",

"illness" }, null, null, null, null, "time", offset + ","

+ maxResult);

while (cursor.moveToNext()) {

int personid = cursor.getInt(cursor.getColumnIndex("ILLid"));

String time_ill = cursor.getString(cursor.getColumnIndex("time"));

String ill = cursor.getString(cursor.getColumnIndex("illness"));

Person p = new Person();

p.setId(personid);

p.setIllness(ill);

p.setTime(time_ill);

persons.add(p);

}

cursor.close();

db.close();

return persons;

}

public long getCount() {// select count(*) from person

SQLiteDatabase db = dbOpenHelper.getReadableDatabase();

/*

* Cursor cursor = db.query("ILLNESS", new String[] { "count(*)" },

* null, null, null, null, null);

*/

Cursor cursor = db.query("ILLNESS", new String[] { "Illid" }, null,

null, null, null, null);

db.close();

return cursor.getCount();

}

}