【学习】java下实现调用oracle的存放进度和函数【
2019-09-13 03:55
创建表:
2.插入测量检验数据：
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--插入数据INSERTINTO stock_prices values('1111',1.0,SYSDATE);INSERTINTO stock_prices values('1112',2.0,SYSDATE);INSERTINTO stock_prices values('1113',3.0,SYSDATE);INSERTINTO stock_prices values('1114',4.0,SYSDATE);
2.插入测量试验数据：
--插入数据
INSERT INTO stock_prices values('1111',1.0,SYSDATE);
INSERT INTO stock_prices values('1112',2.0,SYSDATE);
INSERT INTO stock_prices values('1113',3.0,SYSDATE);
INSERT INTO stock_prices values('1114',4.0,SYSDATE);
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6.JAVA调用存款和储蓄进度再次来到结果集
代码示例：JDBCoracle10G_INVOKEPROCEDURE.java
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import java.sql.*;import oracle.jdbc.OracleCallableStatement;import oracle.jdbc.OracleTypes;/* 本例是通过调用oracle的存储过程来返回结果集: * oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip */publicclass JDBCoracle10G_INVOKEPROCEDURE { Connection conn = null; Statement statement = null; ResultSet rs = null; CallableStatement stmt = null; String driver; String url; String user; String pwd; String sql; String in_price; public JDBCoracle10G_INVOKEPROCEDURE() { driver = "oracle.jdbc.driver.OracleDriver"; url = "jdbc:oracle:thin:@localhost:1521:ORCL"; // oracle 用户 user = "test"; // oracle 密码 pwd = "test"; init(); // mysid：必须为要连接机器的sid名称，否则会包以下错： // java.sql.SQLException: Io 异常: Connection // refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4)))) // 参考连接方式: // Class.forName( "oracle.jdbc.driver.OracleDriver" ); // cn = DriverManager.getConnection( // "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd ); } publicvoid init() { System.out.println("oracle jdbc test"); try { Class.forName(driver); System.out.println("driver is ok"); conn = DriverManager.getConnection(url, user, pwd); System.out.println("conection is ok"); statement = conn.createStatement(); // conn.setAutoCommit(false); // 输入参数 in_price = "3.0"; // 调用函数 stmt = conn.prepareCall("call P_GET_PRICE(?,?,?,?)"); stmt.registerOutParameter(1, java.sql.Types.FLOAT); stmt.registerOutParameter(2, java.sql.Types.CHAR); stmt.registerOutParameter(3, oracle.jdbc.OracleTypes.CURSOR); stmt.setString(4, in_price); stmt.executeUpdate(); int retCode = stmt.getInt(1); String retMsg = stmt.getString(2); if (retCode == -1) { // 如果出错时，返回错误信息 System.out.println("报错！"); } else { // 取的结果集的方式一： rs = ((OracleCallableStatement) stmt).getCursor(3); // 取的结果集的方式二： // rs = (ResultSet) stmt.getObject(3); String ric; String price; String updated; // 对结果进行输出while (rs.next()) { ric = rs.getString(1); price = rs.getString(2); updated = rs.getString(3); System.out.println("ric:" ric ";-- price:" price "; --" updated "; "); } } } catch (Exception e) { e.printStackTrace(); } finally { System.out.println("close "); } } publicstaticvoid main(String args[])// 自己替换［］ { new JDBCoracle10G_INVOKEPROCEDURE(); }}
1.创建表：STOCK_PRICES
--创建表格
CREATE TABLE STOCK_PRICES(
RIC VARCHAR(6) PRIMARY KEY,
PRICE NUMBER(7,2),
UPDATED DATE );
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7.开拓JAVA调用函数重返结果集
代码示例：JDBCoracle10G_INVOKEFUNCTION.java
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import java.sql.*;import oracle.jdbc.OracleCallableStatement;import oracle.jdbc.OracleTypes;/* /* 本例是通过调用oracle的函数来返回结果集: * oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip */publicclass JDBCoracle10G_INVOKEFUNCTION { Connection conn = null; Statement statement = null; ResultSet rs = null; CallableStatement stmt = null; String driver; String url; String user; String pwd; String sql; String in_price; public JDBCoracle10G_INVOKEFUNCTION() { driver = "oracle.jdbc.driver.OracleDriver"; url = "jdbc:oracle:thin:@localhost:1521:ORCL"; // oracle 用户 user = "test"; // oracle 密码 pwd = "test"; init(); // mysid：必须为要连接机器的sid名称，否则会包以下错： // java.sql.SQLException: Io 异常: Connection // refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4)))) // 参考连接方式: // Class.forName( "oracle.jdbc.driver.OracleDriver" ); // cn = DriverManager.getConnection( // "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd ); } publicvoid init() { System.out.println("oracle jdbc test"); try { Class.forName(driver); System.out.println("driver is ok"); conn = DriverManager.getConnection(url, user, pwd); System.out.println("conection is ok"); statement = conn.createStatement(); // conn.setAutoCommit(false); // 输入参数 in_price = "5.0"; // 调用函数 stmt = conn.prepareCall("{? = call F_GET_PRICE(?)}"); // stmt.registerOutParameter(1, java.sql.Types.FLOAT); // stmt.registerOutParameter(2, java.sql.Types.CHAR); stmt.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR); stmt.setString(2, in_price); stmt.executeUpdate(); // 取的结果集的方式一： rs = ((OracleCallableStatement) stmt).getCursor(1); // 取的结果集的方式二： // rs = (ResultSet) stmt.getObject(1); String ric; String price; String updated; while (rs.next()) { ric = rs.getString(1); price = rs.getString(2); updated = rs.getString(3); System.out.println("ric:" ric ";-- price:" price "; --" updated "; "); } } catch (Exception e) { e.printStackTrace(); } finally { System.out.println("close "); } } publicstaticvoid main(String args[])// 自己替换［］ { new JDBCoracle10G_INVOKEFUNCTION(); }}
3.构建四个重回游标： PKG_PUB_UTILS
--建立一个返回游标
CREATE OR REPLACE PACKAGE PKG_PUB_UTILS IS
--动态游标
TYPE REFCURSOR IS REF CURSOR;
END PKG_PUB_UTILS;
在oracle下创办七个test的账户，然后按一入手续施行：
1 declare @my_cur cursor
2
3 declare @id int, @name nvarchar(20)
4
5 exec tb1_proc @my_cur output
6
7 --open @cursor -- @cursor already opened
8
9 fetch next from @my_cur into @id, @name
10
11 while(@@fetch_status=0)
12
13 begin
14
15 print '编号：' convert(nvarchar,@id)
16
17 print '姓名：' @name
18
19 print '......................'
20
21 fetch next from @my_cur into @id, @name
22
23 end
5.创办函数：
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--创建函数：F_GET_PRICECREATEORREPLACEFUNCTION F_GET_PRICE(v_price INNUMBER) RETURN PKG_PUB_UTILS.REFCURSORAS stock_cursor PKG_PUB_UTILS.REFCURSOR;BEGINOPEN stock_cursor FORSELECT*FROM stock_prices WHERE price < span> v_price; RETURN stock_cursor;END;
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4.成立和积攒进程：P_GET_PRICE
--创建存储过程
CREATE OR REPLACE PROCEDURE P_GET_PRICE
(
AN_O_RET_CODE OUT NUMBER,
AC_O_RET_MSG OUT VARCHAR2,
CUR_RET OUT PKG_PUB_UTILS.REFCURSOR,
AN_I_PRICE IN NUMBER
)
IS
BEGIN
AN_O_RET_CODE := 0;
AC_O_RET_MSG := '操作成功';
OPEN CUR_RET FOR
SELECT * FROM STOCK_PRICES WHERE PRICE<AN_I_PRICE;
EXCEPTION
WHEN OTHERS THEN
AN_O_RET_CODE := -1;
AC_O_RET_MSG := '错误代码:' || SQLCODE || CHR(13) || '错误信息:' || SQLERRM;
END P_GET_PRICE;
1 create proc tb1_proc (
2
3 @cur cursor varying output
4
5 )
6
7 as
8
9 begin
10
11 set @cur=cursor for
12
13 select * from tb1
14
15 end
16
17 open @cur
1.创建表：STOCK_PRICES
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--创建表格CREATETABLE STOCK_PRICES( RIC VARCHAR(6) PRIMARYKEY, PRICE NUMBER(7,2), UPDATED DATE );
7.开拓JAVA调用函数重返结果集
代码示例：JDBCoracle10G_INVOKEFUNCTION.java
import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;
/*
/* 本例是通过调用oracle的函数来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEFUNCTION {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;
String driver;
String url;
String user;
String pwd;
String sql;
String in_price;
public JDBCoracle10G_INVOKEFUNCTION()
{
driver = "oracle.jdbc.driver.OracleDriver";
url = "jdbc:oracle:thin:@localhost:1521:ORCL";
// oracle 用户
user = "test";
// oracle 密码
pwd = "test";
init();
// mysid：必须为要连接机器的sid名称，否则会包以下错：
// java.sql.SQLException: Io 异常: Connection
// refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
// 参考连接方式:
// Class.forName( "oracle.jdbc.driver.OracleDriver" );
// cn = DriverManager.getConnection(
// "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );
}
public void init() {
System.out.println("oracle jdbc test");
try {
Class.forName(driver);
System.out.println("driver is ok");
conn = DriverManager.getConnection(url, user, pwd);
System.out.println("conection is ok");
statement = conn.createStatement();
// conn.setAutoCommit(false);
// 输入参数
in_price = "5.0";
// 调用函数
stmt = conn.prepareCall("{? = call F_GET_PRICE(?)}");
// stmt.registerOutParameter(1, java.sql.Types.FLOAT);
// stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(2, in_price);
stmt.executeUpdate();
// 取的结果集的方式一：
rs = ((OracleCallableStatement) stmt).getCursor(1);
// 取的结果集的方式二：
// rs = (ResultSet) stmt.getObject(1);
String ric;
String price;
String updated;
while (rs.next()) {
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);
System.out.println("ric:" ric ";-- price:" price "; --"
updated "; ");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
System.out.println("close ");
}
}
public static void main(String args[])// 自己替换［］
{
new JDBCoracle10G_INVOKEFUNCTION();
}
}
4.创立和积攒进程：P_GET_PRICE
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Code
--创建存储过程CREATEORREPLACEPROCEDURE P_GET_PRICE( AN_O_RET_CODE OUT NUMBER, AC_O_RET_MSG OUT VARCHAR2, CUR_RET OUT PKG_PUB_UTILS.REFCURSOR, AN_I_PRICE INNUMBER) ISBEGIN AN_O_RET_CODE :=0; AC_O_RET_MSG :='操作成功'; OPEN CUR_RET FORSELECT*FROM STOCK_PRICES WHERE PRICE< span>AN_I_PRICE;EXCEPTION WHEN OTHERS THEN AN_O_RET_CODE :=-1; AC_O_RET_MSG :='错误代码:'|| SQLCODE || CHR(13) ||'错误信息:'|| SQLERRM;END P_GET_PRICE;
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java下跌成调用oracle的蕴藏进程和函数
在oracle下成立二个test的账户，然后按一下步骤推行：
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3.起家一个回到游标： PKG_PUB_UTILS
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Code
--建立一个返回游标CREATEORREPLACE PACKAGE PKG_PUB_UTILS IS--动态游标 TYPE REFCURSOR IS REF CURSOR;END PKG_PUB_UTILS;
5.创建函数：
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1 1 create table tb1（
2 2
3 3 id int ,
4 4
5 5 name nvarchar(20)
6 6
7 7 ）
6.JAVA调用存款和储蓄进程再次回到结果集
代码示例：JDBCoracle10G_INVOKEPROCEDURE.java
import java.sql.*;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleTypes;
/* 本例是通过调用oracle的存储过程来返回结果集:
* oracle 9i、10G 的jdbc由1个jar包组成：classes12.zip
*/
public class JDBCoracle10G_INVOKEPROCEDURE {
Connection conn = null;
Statement statement = null;
ResultSet rs = null;
CallableStatement stmt = null;
String driver;
String url;
String user;
String pwd;
String sql;
String in_price;
public JDBCoracle10G_INVOKEPROCEDURE()
{
driver = "oracle.jdbc.driver.OracleDriver";
url = "jdbc:oracle:thin:@localhost:1521:ORCL";
// oracle 用户
user = "test";
// oracle 密码
pwd = "test";
init();
// mysid：必须为要连接机器的sid名称，否则会包以下错：
// java.sql.SQLException: Io 异常: Connection
// refused(DESCRIPTION=(TMP=)(VSNNUM=169870080)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
// 参考连接方式:
// Class.forName( "oracle.jdbc.driver.OracleDriver" );
// cn = DriverManager.getConnection(
// "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );
}
public void init() {
System.out.println("oracle jdbc test");
try {
Class.forName(driver);
System.out.println("driver is ok");
conn = DriverManager.getConnection(url, user, pwd);
System.out.println("conection is ok");
statement = conn.createStatement();
// conn.setAutoCommit(false);
// 输入参数
in_price = "3.0";
// 调用函数
stmt = conn.prepareCall("call P_GET_PRICE(?,?,?,?)");
stmt.registerOutParameter(1, java.sql.Types.FLOAT);
stmt.registerOutParameter(2, java.sql.Types.CHAR);
stmt.registerOutParameter(3, oracle.jdbc.OracleTypes.CURSOR);
stmt.setString(4, in_price);
stmt.executeUpdate();
int retCode = stmt.getInt(1);
String retMsg = stmt.getString(2);
if (retCode == -1) { // 如果出错时，返回错误信息
System.out.println("报错！");
} else {
// 取的结果集的方式一：
rs = ((OracleCallableStatement) stmt).getCursor(3);
// 取的结果集的方式二：
// rs = (ResultSet) stmt.getObject(3);
String ric;
String price;
String updated;
// 对结果进行输出
while (rs.next()) {
ric = rs.getString(1);
price = rs.getString(2);
updated = rs.getString(3);
System.out.println("ric:" ric ";-- price:" price
"; --" updated "; ");
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
System.out.println("close ");
}
}
public static void main(String args[])// 自己替换［］
{
new JDBCoracle10G_INVOKEPROCEDURE();
}
}
始建重临游标的蕴藏进度：
使用存储进度重回的游标：
注意：存款和储蓄进程中开创游标后要展开
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