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個人常用工具記錄

一、Firefox

1、屏蔽廣告插件 Adblock Plus
2、取色工具 ColorZilla
3、調試工具 Firebug
4、另一款web調試工具 Web Developer
5、網頁存儲為圖片 Pearl Crescent
6、另一款網頁切圖工具
7、火狐主頁
8、火狐附加組件
9、Image-Show-Hide（待試用）

10、解壓版Firefox下載
11、Firefox幫助

二、圖片在線編輯工具

1、ps工具
2、ps工具

三、常用軟件下載地址

1、常用軟件下載網站

2、（1）gvim下載地址
    （2）gvim下載地址
    （3）gvim下載地址
    （4）gvim下載地址

四、網站使用工具

1、網站使用工具
2、網絡知識

五、Windows 幫助使用資料

1、windows xp 幫助

？？一個可以使用的幫助網站

六、求職網站記錄

1、拉勾網

posted @ 2015-02-11 15:12 一江閱讀(3542) | 評論 (0) | 編輯收藏

JDBC----------建立數據庫連接

1、什么是JDBC

Java 數據庫連接，（Java Database Connectivity，簡稱JDBC）是Java語言中用來規范客戶端程序如何來訪問數據庫的應用程序接口，提供了諸如查詢和更新數據庫中數據的方法。JDBC也是Sun Microsystems的商標。它JDBC是面向關系型數據庫的（來源：維基百科）。JDBC是我們通過外部程序操作數據庫的一個工具。

2、編寫JDBC的步驟
    （1）加載驅動
    （2）傳遞參數獲得連接
    （3）獲取數據庫連接

    我在這里用了一個properties的配置文件來（database.properties）設置我的我的配置參數

        #mysqluse
       driver=com.mysql.jdbc.Driver
       url=jdbc:mysql://127.0.0.1:3306/dotestuse
       username=root
       password=

程序代碼

import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class GetConnectionT {
public static void main(String[] args) {
try {
//讀取配置文件參數
InputStream in = GetConnectionT.class.getClassLoader().getResourceAsStream("propert.properties");
Properties pr = new Properties();
pr.load(in);
Class.forName(pr.getProperty("driver"));
//通過驅動管理器獲得數據庫連接
Connection con = DriverManager.getConnection(pr.getProperty("url"), pr.getProperty("username"), pr.getProperty("password"));
System.out.println(con);
con.close();
} catch (ClassNotFoundException e) {
System.err.println("加載驅動失敗"+e.getLocalizedMessage());
} catch (IOException e) {
System.err.println("加載配置文件失敗"+e.getLocalizedMessage());
} catch (SQLException e) {
System.err.println("建立數據庫連接失敗"+e.getLocalizedMessage());
}
}
}

這里只是一個簡單的獲得JDBC的例子，在實際工作中我們最好用單例模式來獲得數據庫連接

posted @ 2013-07-05 11:48 一江閱讀(274) | 評論 (0) | 編輯收藏

SLF4J: This version of SLF4J requires log4j version 1.2.12 or later. See also http://www.slf4j.org/codes.html#log4j_version
0    DEBUG [main] org.apache.ibatis.logging.LogFactory     - Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.
31   DEBUG [main] org.apache.ibatis.datasource.pooled.PooledDataSource     - PooledDataSource forcefully closed/removed all connections.
31   DEBUG [main] org.apache.ibatis.datasource.pooled.PooledDataSource     - PooledDataSource forcefully closed/removed all connections.
31   DEBUG [main] org.apache.ibatis.datasource.pooled.PooledDataSource     - PooledDataSource forcefully closed/removed all connections.
31   DEBUG [main] org.apache.ibatis.datasource.pooled.PooledDataSource     - PooledDataSource forcefully closed/removed all connections.
140 DEBUG [main] org.apache.ibatis.transaction.jdbc.JdbcTransaction     - Opening JDBC Connection
483 DEBUG [main] org.apache.ibatis.datasource.pooled.PooledDataSource     - Created connection 6259058.
483 DEBUG [main] com.te.mybatis.persitence.ifance.PersonDao.insertperson     - ooo Using Connection [com.mysql.jdbc.JDBC4Connection@5f8172]
483 DEBUG [main] com.te.mybatis.persitence.ifance.PersonDao.insertperson     - ==> Preparing: insert into person(username) values('tomcat23')
530 DEBUG [main] com.te.mybatis.persitence.ifance.PersonDao.insertperson     - ==> Parameters:
530 DEBUG [main] org.apache.ibatis.transaction.jdbc.JdbcTransaction     - Rolling back JDBC Connection [com.mysql.jdbc.JDBC4Connection@5f8172]
561 DEBUG [main] org.apache.ibatis.transaction.jdbc.JdbcTransaction     - Resetting autocommit to true on JDBC Connection [com.mysql.jdbc.JDBC4Connection@5f8172]
561 DEBUG [main] org.apache.ibatis.transaction.jdbc.JdbcTransaction     - Closing JDBC Connection [com.mysql.jdbc.JDBC4Connection@5f8172]
561 DEBUG [main] org.apache.ibatis.datasource.pooled.PooledDataSource     - Returned connection 6259058 to pool.

運行插入語句始終不能成功，但是一直沒有注意這個語句

530 DEBUG [main] org.apache.ibatis.transaction.jdbc.JdbcTransaction - Rolling back JDBC Connection [com.mysql.jdbc.JDBC4Connection@5f8172]

想一想在insert里面也沒有用到事務啊，不知道是什么原因？

在執行語句出添加事務提交就可以插入成功，

        SqlSession sqlsesstion = sc.openSession();

       sqlsesstion.insert("insertperson", person);
       sqlsesstion.commit(); //還不知道是什么原因要提交事務才可以插入數據成功，但是每一次似乎都對數據庫產生了影響
        sqlsesstion.close();

有一點亂！！！

posted @ 2013-07-04 12:10 一江閱讀(3106) | 評論 (1) | 編輯收藏

火狐瀏覽器使用記錄

1、配置多個用戶
在火狐關閉的的情況下在命令行窗口輸入firefox -p 調出配置文件管理項詳細操作參考管理用戶配置文件

2、設置可以啟動多個賬戶
打開自己的firefox 啟動快捷鍵=》目標。在目標里面加上配置文件即可如 D:\officeprograme\internettool\Firefox\firefox.exe --no-remote -p usephp --no-remote -p usephp 指定用戶配置參考火狐常見啟動參數介紹

posted @ 2013-05-20 22:53 一江閱讀(217) | 評論 (0) | 編輯收藏

ibatis 中使用select 查詢數據庫中存在查詢項是null 是報錯

在使用ibatis 進行查詢數據庫是報錯
錯誤如下：

查詢失敗
--- The error occurred in com/sqlmap/person.xml.
--- The error occurred while applying a result map.
--- Check the lisper-AutoResultMap.
--- The error happened while setting a property on the result object.
--- Cause: com.ibatis.common.exception.NestedRuntimeException: Error setting properties of '230kims                00'. Cause: java.lang.IllegalArgumentException
Caused by: java.lang.IllegalArgumentException
com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/sqlmap/person.xml.
--- The error occurred while applying a result map.
--- Check the lisper-AutoResultMap.
--- The error happened while setting a property on the result object.
--- Cause: com.ibatis.common.exception.NestedRuntimeException: Error setting properties of '230kims                00'. Cause: java.lang.IllegalArgumentException
Caused by: java.lang.IllegalArgumentException
Caused by: com.ibatis.common.exception.NestedRuntimeException: Error setting properties of '230kims                00'. Cause: java.lang.IllegalArgumentException
Caused by: java.lang.IllegalArgumentException
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:188)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:610)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:584)
   at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:101)
   at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:78)
   at com.bean.persondaoim.PersonDaoIm.lsper(PersonDaoIm.java:43)
   at com.bean.persondaoim.PersonDaoIm.main(PersonDaoIm.java:67)
Caused by: com.ibatis.common.exception.NestedRuntimeException: Error setting properties of '230kims                00'. Cause: java.lang.IllegalArgumentException
Caused by: java.lang.IllegalArgumentException
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:51)
   at com.ibatis.sqlmap.engine.exchange.JavaBeanDataExchange.setData(JavaBeanDataExchange.java:112)
   at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.setResultObjectValues(BasicResultMap.java:333)
   at com.ibatis.sqlmap.engine.mapping.statement.RowHandlerCallback.handleResultObject(RowHandlerCallback.java:63)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:391)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:184)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
   ... 7 more
Caused by: java.lang.IllegalArgumentException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:45)
   ... 14 more

Caused by:
com.ibatis.common.exception.NestedRuntimeException: Error setting properties of '230kims                00'. Cause: java.lang.IllegalArgumentException
Caused by: java.lang.IllegalArgumentException
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:51)
   at com.ibatis.sqlmap.engine.exchange.JavaBeanDataExchange.setData(JavaBeanDataExchange.java:112)
   at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.setResultObjectValues(BasicResultMap.java:333)
   at com.ibatis.sqlmap.engine.mapping.statement.RowHandlerCallback.handleResultObject(RowHandlerCallback.java:63)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:391)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:184)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:610)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:584)
   at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:101)
   at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:78)
   at com.bean.persondaoim.PersonDaoIm.lsper(PersonDaoIm.java:43)
   at com.bean.persondaoim.PersonDaoIm.main(PersonDaoIm.java:67)
Caused by: java.lang.IllegalArgumentException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:45)
   ... 14 more

Caused by:
java.lang.IllegalArgumentException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:45)
   at com.ibatis.sqlmap.engine.exchange.JavaBeanDataExchange.setData(JavaBeanDataExchange.java:112)
   at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.setResultObjectValues(BasicResultMap.java:333)
   at com.ibatis.sqlmap.engine.mapping.statement.RowHandlerCallback.handleResultObject(RowHandlerCallback.java:63)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:391)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:184)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:610)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:584)
   at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:101)
   at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:78)
   at com.bean.persondaoim.PersonDaoIm.lsper(PersonDaoIm.java:43)
   at com.bean.persondaoim.PersonDaoIm.main(PersonDaoIm.java:67)

Caused by:
com.ibatis.common.exception.NestedRuntimeException: Error setting properties of '230kims                00'. Cause: java.lang.IllegalArgumentException
Caused by: java.lang.IllegalArgumentException
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:51)
   at com.ibatis.sqlmap.engine.exchange.JavaBeanDataExchange.setData(JavaBeanDataExchange.java:112)
   at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.setResultObjectValues(BasicResultMap.java:333)
   at com.ibatis.sqlmap.engine.mapping.statement.RowHandlerCallback.handleResultObject(RowHandlerCallback.java:63)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:391)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:184)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:610)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:584)
   at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:101)
   at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:78)
   at com.bean.persondaoim.PersonDaoIm.lsper(PersonDaoIm.java:43)
   at com.bean.persondaoim.PersonDaoIm.main(PersonDaoIm.java:67)
Caused by: java.lang.IllegalArgumentException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:45)
   ... 14 more

Caused by:
java.lang.IllegalArgumentException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:45)
   at com.ibatis.sqlmap.engine.exchange.JavaBeanDataExchange.setData(JavaBeanDataExchange.java:112)
   at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.setResultObjectValues(BasicResultMap.java:333)
   at com.ibatis.sqlmap.engine.mapping.statement.RowHandlerCallback.handleResultObject(RowHandlerCallback.java:63)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:391)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:184)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:610)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:584)
   at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:101)
   at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:78)
   at com.bean.persondaoim.PersonDaoIm.lsper(PersonDaoIm.java:43)
   at com.bean.persondaoim.PersonDaoIm.main(PersonDaoIm.java:67)

Caused by:
java.lang.IllegalArgumentException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.ibatis.sqlmap.engine.accessplan.PropertyAccessPlan.setProperties(PropertyAccessPlan.java:45)
   at com.ibatis.sqlmap.engine.exchange.JavaBeanDataExchange.setData(JavaBeanDataExchange.java:112)
   at com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.setResultObjectValues(BasicResultMap.java:333)
   at com.ibatis.sqlmap.engine.mapping.statement.RowHandlerCallback.handleResultObject(RowHandlerCallback.java:63)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor.java:391)
   at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:184)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
   at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:610)
   at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:584)
   at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:101)
   at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:78)
   at com.bean.persondaoim.PersonDaoIm.lsper(PersonDaoIm.java:43)
   at com.bean.persondaoim.PersonDaoIm.main(PersonDaoIm.java:67)
Exception in thread "main" java.lang.NullPointerException
   at com.bean.persondaoim.PersonDaoIm.main(PersonDaoIm.java:70)

posted @ 2013-05-19 21:31 一江閱讀(632) | 評論 (1) | 編輯收藏

gnl

個人常用工具記錄

JDBC----------建立數據庫連接

mybatis 學習記錄

火狐瀏覽器使用記錄

ibatis 中使用select 查詢數據庫中存在查詢項是null 是報錯

導航

常用鏈接

留言簿

隨筆分類

隨筆檔案

搜索

最新評論

閱讀排行榜

評論排行榜

gnl

個人常用工具記錄

JDBC----------建立數據庫連接

mybatis 學習記錄

火狐瀏覽器使用記錄

ibatis 中使用select 查詢 數據庫中存在查詢項是null 是報錯

導航

常用鏈接

留言簿

隨筆分類

隨筆檔案

搜索

最新評論

閱讀排行榜

評論排行榜

ibatis 中使用select 查詢數據庫中存在查詢項是null 是報錯