23439人阅读
MongoDB（1）
最近开始学习mongo 在window的安装已经掌握，操作不难，工作中使用还是在linux的使用比较多。但是参考一些文档安装完毕后。发现在启动mongo时候出现了标题的错误最终通过重新对路径的设置解决了此问题解决办法：输入以下命令[root@localhost mongodb]# ./bin/mongod -dbpath=/data/db然后界面会出现：[root@localhost mongodb]# ./bin/mongod -dbpath=/data/db
Tue Dec 11 14:45:53
Tue Dec 11 14:45:53 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.
Tue Dec 11 14:45:53
Tue Dec 11 14:45:53 [initandlisten] MongoDB starting : pid=3813 port=27017 dbpath=/data/db 32-bit host=localhost.localdomain
Tue Dec 11 14:45:53 [initandlisten]
Tue Dec 11 14:45:53 [initandlisten] ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data
Tue Dec 11 14:45:53 [initandlisten] **
see http://blog.mongodb.org/post/-bit-limitations
Tue Dec 11 14:45:53 [initandlisten] **
with --journal, the limit is lower
Tue Dec 11 14:45:53 [initandlisten]
Tue Dec 11 14:45:53 [initandlisten] db version v2.2.2, pdfile version 4.5
Tue Dec 11 14:45:53 [initandlisten] git version: d1b43b61a79d34b262c5af9d664267
Tue Dec 11 14:45:53 [initandlisten] build info: Linux domU-12-31-39-01-70-B4 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:39:36 EST
BOOST_LIB_VERSION=1_49
Tue Dec 11 14:45:53 [initandlisten] options: { dbpath: &/data/db& }
Tue Dec 11 14:45:53 [initandlisten] exception in initAndListen: 10296
*********************************************************************
ERROR: dbpath (/data/db) does not exist.
Create this directory or give existing directory in --dbpath.
See http://dochub.mongodb.org/core/startingandstoppingmongo
*********************************************************************
, terminating
Tue Dec 11 14:45:53 dbexit:
Tue Dec 11 14:45:53 [initandlisten] shutdown: going to close listening sockets...
Tue Dec 11 14:45:53 [initandlisten] shutdown: going to flush diaglog...
Tue Dec 11 14:45:53 [initandlisten] shutdown: going to close sockets...
Tue Dec 11 14:45:53 [initandlisten] shutdown: waiting for fs preallocator...
Tue Dec 11 14:45:53 [initandlisten] shutdown: closing all files...
Tue Dec 11 14:45:53 [initandlisten] closeAllFiles() finished
Tue Dec 11 14:45:53 dbexit: really exiting now
[root@localhost mongodb]# ./bin/mongod -dbpath=/usr/local/mongodb/data/db/
Tue Dec 11 14:46:53
Tue Dec 11 14:46:53 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.
Tue Dec 11 14:46:53
Tue Dec 11 14:46:53 [initandlisten] MongoDB starting : pid=3819 port=27017 dbpath=/usr/local/mongodb/data/db/ 32-bit host=localhost.localdomain
Tue Dec 11 14:46:53 [initandlisten]
Tue Dec 11 14:46:53 [initandlisten] ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data
Tue Dec 11 14:46:53 [initandlisten] **
see http://blog.mongodb.org/post/-bit-limitations
Tue Dec 11 14:46:53 [initandlisten] **
with --journal, the limit is lower
Tue Dec 11 14:46:53 [initandlisten]
Tue Dec 11 14:46:53 [initandlisten] db version v2.2.2, pdfile version 4.5
Tue Dec 11 14:46:53 [initandlisten] git version: d1b43b61a79d34b262c5af9d664267
Tue Dec 11 14:46:53 [initandlisten] build info: Linux domU-12-31-39-01-70-B4 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:39:36 EST
BOOST_LIB_VERSION=1_49
Tue Dec 11 14:46:53 [initandlisten] options: { dbpath: &/usr/local/mongodb/data/db/& }
Tue Dec 11 14:46:53 [initandlisten] Unable to check for journal files due to: boost::filesystem::basic_directory_iterator constructor: No such file or directory: &/usr/local/mongodb/data/db/journal&
Tue Dec 11 14:46:53 [initandlisten] waiting for connections on port 27017
Tue Dec 11 14:46:53 [websvr] admin web console waiting for connections on port 28017
Tue Dec 11 14:47:11 [initandlisten] connection accepted from 127.0.0.1:4 connection now open)
Tue Dec 11 14:49:04 [initandlisten] connection accepted from 192.168.0.137: connections now open)
Tue Dec 11 14:49:04 [FileAllocator] allocating new datafile /usr/local/mongodb/data/db/temp.ns, filling with zeroes...
Tue Dec 11 14:49:04 [FileAllocator] creating directory /usr/local/mongodb/data/db/_tmp
Tue Dec 11 14:49:05 [FileAllocator] done allocating datafile /usr/local/mongodb/data/db/temp.ns, size: 16MB,
took 0.303 secs
Tue Dec 11 14:49:05 [FileAllocator] allocating new datafile /usr/local/mongodb/data/db/temp.0, filling with zeroes...
Tue Dec 11 14:49:05 [FileAllocator] done allocating datafile /usr/local/mongodb/data/db/temp.0, size: 16MB,
took 0.328 secs
Tue Dec 11 14:49:05 [FileAllocator] allocating new datafile /usr/local/mongodb/data/db/temp.1, filling with zeroes...
Tue Dec 11 14:49:05 [conn2] build index temp.users { _id: 1 }
Tue Dec 11 14:49:05 [conn2] build index done.
scanned 0 total records. 0 secs
Tue Dec 11 14:49:05 [conn2] insert temp.users keyUpdates:0 locks(micros) w:ms
Tue Dec 11 14:49:05 [conn2] end connection 192.168.0.137:2869 (1 connection now open)
Tue Dec 11 14:49:05 [FileAllocator] done allocating datafile /usr/local/mongodb/data/db/temp.1, size: 32MB,
took 0.528 secs
表示设置成功，此时不要关闭这个界面，需要重新打开一个窗口来启动mongo&Last login: Tue Dec 11 14:05:30 2012 from 192.168.0.137
[root@localhost ~]# ls
anaconda-ks.cfg
install.log
install.log.syslog
[root@localhost ~]# cd /usr/local
[root@localhost local]# ls
gcc-install
leveldb-1.5.0.tar.gz
mongodb-linux-i686-2.0.8.tgz
redis-1.2.6.tar.gz
redis-2.6.6.tar.gz
gcc-4.1.2.tar.gz
leveldb-1.7.0
mongodb-linux-i686-2.2.2.tgz
redis-2.4.14
leveldb-1.5.0
leveldb-1.7.0.tar.gz
redis-1.2.6
redis-2.4.14.tar.gz
[root@localhost local]# cd mongodb
[root@localhost mongodb]# ls
GNU-AGPL-3.0
THIRD-PARTY-NOTICES
[root@localhost mongodb]# cd logs
[root@localhost logs]# ls
[root@localhost logs]# ls
[root@localhost logs]#
[root@localhost logs]# cd ..
[root@localhost mongodb]# ./bin/mongo
MongoDB shell version: 2.2.2
connecting to: test
Welcome to the MongoDB shell.
For interactive help, type &help&.
For more comprehensive documentation, see
http://docs.mongodb.org/
Questions? Try the support group
/group/mongodb-user
当出现这个时候表示启动成功，然后用java代码测试：/**
* MongoDbTest.java
* 版权所有(C) 2012
* 创建:cuiran
package com.wpndemo.
import java.net.UnknownHostE
import org.bson.types.ObjectId;
import com.mongodb.BasicDBO
import com.mongodb.DB;
import com.mongodb.DBC
import com.mongodb.DBC
import com.mongodb.DBO
import com.mongodb.M
import com.mongodb.MongoE
* @author cuiran
* @version TODO
public class MongoDbTest {
private Mongo mg =
private DB
private DBC
public void init(){
mg=new Mongo();
mg=new Mongo(&192.168.0.138&,27017);
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch (MongoException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//获取temp DB 如果默认没有 会自动创建
db=mg.getDB(&temp&);
//获取users Collection 如果默认没有 会自动创建
users=db.getCollection(&users&);
public void destory(){
if(mg!=null){
mg.close();
System.gc();
* &b&function:&/b& 查询所有数据
* @author cuiran
* @createDate
public void queryAll(){
print(&查询users的所有数据&);
DBCursor cur=users.find();
while(cur.hasNext()){
print(cur.next());
*&b&function:&/b&添加数据
* @author cuiran
* @createDate
public void add(){
queryAll();
print(&count:&+users.count());
DBObject user=new BasicDBObject();
user.put(&name&, &cuiran1&);
user.put(&age&, 27);
users.save(user);
print(users.save(user).getN());
user.put(&sex&, &男&);
print(users.save(user).getN());
print(&count:&+users.count());
queryAll();
*&b&function:&/b&删除数据
* @author cuiran
* @createDate
public void remove(){
queryAll();
print(&删除id = 50c68da852c2e1adb70f6d29：& + users.remove(new BasicDBObject(&_id&, new ObjectId(&50c68da852c2e1adb70f6d29&))).getN());
queryAll();
public void print(Object o){
System.out.println(o);
public void start(){
destory();
queryAll();
* @param args
public static void main(String[] args) {
// TODO Auto-generated method stub
MongoDbTest t=new MongoDbTest();
t.start();
运行结果：&查询users的所有数据
查询users的所有数据
{ &_id& : { &$oid& : &50c6dc9cec8c11&} , &name& : &cuiran1& , &age& : 27 , &sex& : &男&}
参考知识库
* 以上用户言论只代表其个人观点，不代表CSDN网站的观点或立场
访问：1311670次
积分：13942
积分：13942
排名：第626名
原创：236篇
转载：18篇
评论：594条
(1)(1)(3)(2)(2)(1)(1)(2)(3)(2)(1)(2)(2)(5)(4)(4)(1)(1)(2)(1)(3)(2)(1)(3)(4)(1)(3)(1)(1)(1)(4)(5)(5)(5)(11)(8)(5)(11)(6)(6)(6)(7)(1)(5)(5)(9)(4)(2)(3)(8)(1)(2)(2)(1)(33)(1)(2)(2)(2)(4)(9)(2)(1)(8)(5)(2)(1)xutils无法进行下载了，总是提示EACCES(Permission denied),权限已加
21:00:44&&&来源：&&&评论： 点击：
本帖最后由 franky814 于
20:08:20 编辑
模拟下载的文件是在我电脑上的，单独在浏览器可以打开下载的
在模拟器中报错：java.io.IOException:open&failed:EACCES(Permission&denied)
在我的nexus5&中报错:java.io.IOException:stack&size&1036KB
控制台报错：E/RetryHandler.retryRequest(L:91)(11812):&retry&error,&curr&request&is&null
是xutils框架的问题吗？求高手解答啊
&&uses-permission&android:name="android.permission.INTERNET"&/&
&&&&&uses-permission&android:name="android.permission.READ_EXTERNAL_STORAGE"&/&
&&&&&uses-permission&android:name="android.permission.WRITE_EXTERNAL_STORAGE"&/&
&&&&&uses-permission&android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"&/&
xutils的使用代码：if&(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))&{
HttpUtils&http&=&new&HttpUtils();
HttpHandler&handler&=&http.download("http://192.168.0.254:8080/apkupdate/xxx.apk",
Environment.getExternalStorageDirectory().getAbsolutePath()
+&"/xxx.apk",&true,&//&如果目标文件存在，接着未完成的部分继续下载。服务器不支持RANGE时将从新下载。
true,&//&如果从请求返回信息中获取到文件名，下载完成后自动重命名。
new&RequestCallBack&File&()&{
public&void&onStart()&{
public&void&onLoading(long&total,&long&current,
boolean&isUploading)&{
tv_update.setVisibility(View.VISIBLE);
tv_update.setText("更新进度&"&+&(current&*&100&/&total)
public&void&onSuccess(ResponseInfo&File&&responseInfo)&{
File&f&=&responseInfo.
installApk(f);
tv_update.setVisibility(View.VISIBLE);
tv_update.setText("downloaded:"&+&responseInfo.result.getPath());
public&void&onFailure(HttpException&error,&String&msg)&{
Log.e(TAG,&msg);
tv_update.setVisibility(View.VISIBLE);
tv_update.setText(msg);
enterHome();
Toast.makeText(SplashActivity.this,&"试试插上SD卡吧",&0).show();
相关热词搜索：
频道总排行
频道本月排行