java

位置:IT落伍者 >> java >> 浏览文章

Eclipse下配置swt开发环境


发布日期:2019年06月01日
 
Eclipse下配置swt开发环境

创建存储过程的脚本

使用sqlserver 中的pubs 数据库中的 jobs表为例

create procedure showAll

as

select * from jobs

create procedure obtainJob_desc

@outputParam varchar() output

@id int

as

select @outputParam = job_desc from jobs where job_id = @id

create procedure obtainReturn

as

declare @ret int

select @ret = count(*) from jobs

return @ret

declare @ret int

exec @ret = obtainReturn

print @ret

用来获得连接的函数

public Connection getConnection(){

Connection con = null;

try {

ClassforName(commicrosoftjdbcsqlserverSQLServerDriver);

con = DriverManagergetConnection(jdbc:microsoft:sqlserver://localhost:;databasename=pubssa);

} catch (Exception e) {

eprintStackTrace();

}

return con ;

}

调用得到结果集的存储过程

public void getResultSet(){

//获得连接

Connection con = thisgetConnection();

try {

//showAll为存储过程名

javasqlCallableStatement cstm = conprepareCall({call showAll });

ResultSet rs = cstmexecuteQuery();

while(rsnext()){

//这里写逻辑代码

Systemoutprintln(rsgetString());

}

rsclose();

conclose();

} catch (SQLException e) {

// TODO Autogenerated catch block

eprintStackTrace();

}

}

调用带有 输入 输出 参数的存储过程

public void getOutParameter(int inParam){

String outParam;

Connection con = thisgetConnection();

try {

CallableStatement cstm = conprepareCall({call obtainJob_desc (??)});

cstmregisterOutParameter( TypesVARCHAR);

cstmsetInt( inParam);

cstmexecute();;

//得到输出参数

String outParma = cstmgetString();

Systemoutprintln(outParma);

cstmclose();

conclose();

} catch (SQLException e) {

// TODO Autogenerated catch block

eprintStackTrace();

}

}

调用带返回值的存储过程

public void getReturn(){

int ret;

Connection con = thisgetConnection();

try {

CallableStatement cstm = conprepareCall({?=call obtainReturn()});

cstmregisterOutParameter( TypesINTEGER);

cstmexecute();

//得到返回值

ret = cstmgetInt();

Systemoutprintln(ret);

cstmclose();

conclose();

} catch (SQLException e) {

// TODO Autogenerated catch block

eprintStackTrace();

}

}

上一篇:使用MyEclipse整合SSH模式:登陆范例

下一篇:Spring IOC配置与应用