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体验新版 GitCode,发现更多精彩内容 >>
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c93a24f2
编写于
1月 27, 2021
作者:
H
huili
提交者:
GitHub
1月 27, 2021
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Merge pull request #5052 from taosdata/zyyang-taosdata-patch-6
Update connector-java-ch.md
上级
9a64b8a4
97acf2dd
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documentation20/webdocs/markdowndocs/connector-java-ch.md
documentation20/webdocs/markdowndocs/connector-java-ch.md
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documentation20/webdocs/markdowndocs/connector-java-ch.md
浏览文件 @
c93a24f2
...
...
@@ -339,9 +339,10 @@ conn.close();
config
.
setUsername
(
"root"
);
config
.
setPassword
(
"taosdata"
);
// connection pool configurations
config
.
setMinimumIdle
(
3
);
//minimum number of idle connection
config
.
setMinimumIdle
(
10
);
//minimum number of idle connection
config
.
setMaximumPoolSize
(
10
);
//maximum number of connection in the pool
config
.
setConnectionTimeout
(
30000
);
//maximum wait milliseconds for get connection from pool
config
.
setMaxLifetime
(
0
);
// maximum life time for each connection
config
.
setIdleTimeout
(
0
);
// max idle time for recycle idle connection
config
.
setConnectionTestQuery
(
"select server_status()"
);
//validation query
...
...
@@ -375,24 +376,22 @@ conn.close();
*
使用示例如下:
```
java
public
static
void
main
(
String
[]
args
)
throws
Exception
{
Properties
properties
=
new
Properties
();
DruidDataSource
dataSource
=
new
DruidDataSource
();
// jdbc properties
properties
.
put
(
"driverClassName"
,
"com.taosdata.jdbc.TSDBDriver"
);
properties
.
put
(
"url"
,
"jdbc:TAOS://127.0.0.1:6030/log"
);
properties
.
put
(
"username"
,
"root"
);
properties
.
put
(
"password"
,
"taosdata"
);
dataSource
.
setDriverClassName
(
"com.taosdata.jdbc.TSDBDriver"
);
dataSource
.
setUrl
(
url
);
dataSource
.
setUsername
(
"root"
);
dataSource
.
setPassword
(
"taosdata"
);
// pool configurations
properties
.
put
(
"maxActive"
,
"10"
);
//maximum number of connection in the pool
properties
.
put
(
"initialSize"
,
"3"
);
//initial number of connection
properties
.
put
(
"minIdle"
,
"3"
);
//minimum number of connection in the pool
properties
.
put
(
"maxWait"
,
"30000"
);
//maximum wait milliseconds for get connection from pool
properties
.
put
(
"validationQuery"
,
"select server_status()"
);
//validation query
//create druid datasource
DataSource
ds
=
DruidDataSourceFactory
.
createDataSource
(
properties
);
Connection
connection
=
ds
.
getConnection
();
// get connection
dataSource
.
setInitialSize
(
10
);
dataSource
.
setMinIdle
(
10
);
dataSource
.
setMaxActive
(
10
);
dataSource
.
setMaxWait
(
30000
);
dataSource
.
setValidationQuery
(
"select server_status()"
);
Connection
connection
=
dataSource
.
getConnection
();
// get connection
Statement
statement
=
connection
.
createStatement
();
// get statement
//query or insert
// ...
...
...
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