NC 数据库操作

一、后台数据库操作方法(private端)：

1.以下为后台查询方法

BaseDAO dao = new BaseDAO();//只能在private端使用

String querySql="select * from demo_quotation where dr = 0";//完整正确的sql语句

Object result1 = dao.executeQuery("select vbillcode from demo_quotation where pk_salequotation='某个主键'", new ColumnProcessor());//查询语句只能返回一行一列结果

List<Object[]> result2 = (List<Object[]>) dao.executeQuery(querySql, new ArrayListProcessor());//查询语句可以返回多行多列

//for(Object[] obj : result2){ obj[0]...obj[n]}

Map<String, Object> result3 = (Map<String, Object>) dao.executeQuery("select * from demo_quotation where pk_salequotation='某个主键'", new MapProcessor());//查询语句只返回一行结果

List<Map<String,String>> result4 = (List<Map<String, String>>) dao.executeQuery(querySql, new MapListProcessor());//查询语句可以返回多行结果

//for(Map<String,String> map : result4){map.get("字段名")}

QuotationHVO result5 = (QuotationHVO) dao.executeQuery("select * from

demo_quotation where pk_salequotation='某个主键'", new BeanProcessor(QuotationHVO.class));//查询语句只返回一个VO

List<QuotationHVO> result6 = (List<QuotationHVO>) dao.executeQuery(querySql,new BeanListProcessor(QuotationHVO.class));//查询语句返回多个VO

Set<String> result =

(Set<String>) dao.executeQuery(sql, new BaseProcessor() {

private static final long serialVersionUID = 1L;

@Override

public Object processResultSet(ResultSet rs) throws SQLException {

Set<String> result = new HashSet<String>();

String cproductid = null;

while (rs.next()) {

cproductid = rs.getString("cproductid");

result.add(cproductid);

}

return result;

}

});

return result;

}

2.以下为新增更新删除方法(手写sql)

dao.executeUpdate("sql");

二、前台数据库操作方法(client端)：

IUAPQueryBS bs = NCLocator.getInstance().lookup(IUAPQueryBS.class);

bs.executeQuery(sql, processor);//processor跟第一点的basedao用法一致

三、

//后台通过主表主键查询aggvo

BillQuery<AggPromoPolicyVO> query = new BillQuery<>(AggPromoPolicyVO.class);

query .query(keys);

//前台通过主表主键查询aggvo

HYPubBO_Client.queryBillVOByPrimaryKey(class, hids)

//或者前后台都能用

IBillQueryService billQuery = NCLocator.getInstance().lookup(IBillQueryService.class);

以下例子可以防SQL注入(前后台都有个SQLParameter 参数能使用)

StringBuilder sql = new StringBuilder();

sql.append("select * from esoc_dispatchrecgoods ")

.append(" where dispatchnoteid=?").append(" and dr=?");

SQLParameter param = new SQLParameter();

param.addParam(pk_dispatchnoteid);

param.addParam(0);

List<DispatchRecGoodsVO> drgvoList = (List<DispatchRecGoodsVO>) dao

.executeQuery(sql.toString(), param, new BeanListProcessor(

DispatchRecGoodsVO.class))

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 用友前台CURD操作
前台提供两个主要接口进行CURD操作：
IVOPersistence  该接口只支持前台增删改操作
IUAPQueryBS   该接口主要支持前台的查询操作
有了这两个接口，就省去了写后台接口的步骤，但是具体的操作还是要视情况而定。