我正试图进入一个名为valor的变量,在我的sql server存储过程中返回return语句... sqlserver存储过程工作正常,但问题是java ..
create procedure login
@cliente varchar(10),@pw varchar(10)
as begin
if exists(select cliente from seg where cliente=@cliente)
begin
if(select pw from seg where cliente=@cliente)=@pw
begin
if(select privilegio from seg where cliente=@cliente)=0 begin
print 0
return 0
end
end
exec 'xd','xd'
这里我从PRINT行收到一条消息: 0
所以,我应该能够获取该值并使用此JAVA代码将其设置为变量valorReturn
String consulta="exec login '"+usr+"','"+pw+"'";
CallableStatement st=con.prepareCall(consulta);
st.setInt(1,10);
st.registerOutParameter(1, Types.INTEGER);
st.execute();
int valorReturn=st.getInt(1);
这是在控制台中打印的例外
com.microsoft.sqlserver.jdbc.SQLServerException:索引1超出范围。
谢谢,我感谢任何帮助! :)
答案 0 :(得分:0)
SQL需要提供绑定到的输出参数。
create procedure login
@cliente varchar(10), @pw varchar(10), @result INT = -1 OUTPUT
as begin
if exists(select cliente from seg where cliente=@cliente)
begin
if(select pw from seg where cliente=@cliente)=@pw
begin
if(select privilegio from seg where cliente=@cliente)=0 begin
print 0
SET @result = 0 -- new parameter
return 0
end
end
String consulta="exec login ?,?,?"; //moved out to parameters to avoid SQL injection.
CallableStatement st= con.prepareCall(consulta);
st.setString(1,usr);
st.setString(2,pw);
st.registerOutParameter(3, Types.INTEGER);
st.execute();
int valorReturn=st.getInt(3);
可在https://docs.microsoft.com/en-us/sql/connect/jdbc/using-a-stored-procedure-with-output-parameters
找到更多信息