作用
远程调用oreacleServer ksf服务
用法示例
var oracleClientHelper = require("@ksfks/oracle-client")("testbus","upapp")
/**
* oracle查询
* @param string 查询SQL语句
* @param json JSON格式的绑定数据(如果SQL语句不带绑定标志位,可以不传)
* @param number 最大查询记录数(如果不传,将读取默认值)
*/
//如果不带绑定参数,可以只传SQL语句和最大查询数
oracleClientHelper.query('select * from (select t.*,rownum from UPAPP.NEWS_MAIN_ELE t)', 100).then(data =>{
console.log(data);
})
//最简单时候可以只传一条SQL语句作为参数,此时最大查询数将读取默认值
oracleClientHelper.query('select * from (select t.*,rownum from UPAPP.NEWS_MAIN_ELE t)').then(data =>{
console.log(data);
})
//绑定数据查询,推荐传入JSON对象,标识符和键值保持一致
oracleClientHelper.query('select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = :skt_uni_code', {skt_uni_code: '2010003382'}, 100).then(data =>{
console.log(data);
})
//如果偷懒的话也可以传数组,不过这样将会按顺序对号入座
oracleClientHelper.query('select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = :skt_uni_code', ['2010003382'], 100).then(data =>{
console.log(data);
})
//兼容了老接口:queryBindParams
oracleClientHelper.queryBindParams('select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = :skt_uni_code', ['2010003382'], 100).then(data =>{
console.log(data);
})
/**
* oracle查询,加入缓存机制
*
* @param json sqlString 查询SQL语句
* bindParams JSON格式的绑定数据(如果SQL语句不带绑定标志位,可以不传)
* maxRowNum 最大查询记录数,如果不传,读取服务默认配置
* expireTime 缓存过期时间,单位秒,如果不传,读取服务默认配置
* isForce 是否强刷,如果不传,读取服务默认配置
*/
//最简单的用法,会优先去缓存拿数据,如果没有直接查数据库
oracleClientHelper.queryCache({
sqlString: 'select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = 2010003382',
}).then(data => {console.log(data);}).catch(err => {console.log(err);});
//可以限制最大查询数量,如果不传,读取服务默认配置
oracleClientHelper.queryCache({
sqlString: 'select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = 2010003382',
maxRowNum: 100
}).then(data => {console.log(data);}).catch(err => {console.log(err);});
//可以绑定参数
oracleClientHelper.queryCache({
sqlString: 'select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = :skt_uni_code',
bindParams: {skt_uni_code: '2010003382'},
maxRowNum: 100
}).then(data => {console.log(data);}).catch(err => {console.log(err);});
//同时我们也可以手动设置缓存过期时间,单位秒,如果没设置,读取服务默认配置
oracleClientHelper.queryCache({
sqlString: 'select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = :skt_uni_code',
bindParams: {skt_uni_code: '2010003382'},
maxRowNum: 100,
expireTime: 60
}).then(data => {console.log(data);}).catch(err => {console.log(err);});
//服务器配置默认取缓存,如果不想拿缓存的数据,也可以强刷
oracleClientHelper.queryCache({
sqlString: 'select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = :skt_uni_code',
bindParams: {skt_uni_code: '2010003382'},
maxRowNum: 100,
expireTime: 60,
isForce: true
}).then(data => {console.log(data);}).catch(err => {console.log(err);});
//最后我们也可以人为指定缓存key
oracleClientHelper.queryCache({
sqlString: 'select * from UPAPP.STK_BASIC_INFO where STK_UNI_CODE = :skt_uni_code',
bindParams: {skt_uni_code: '2010003382'},
maxRowNum: 100,
expireTime: 60,
isForce: true,
cacheKey: 'oracle_srv_test'
}).then(data => {console.log(data);}).catch(err => {console.log(err);});