原文:java代码调用oracle存储过程
一、简介
与调用mysql存储过程类型过程都是如下
1、创建连接 Connection conn = DriverManager.getConnection(url, user, password);
2、创建CallableStatement CallableStatement statement = conn.prepareCall(sql);
3、设置参数
statement.setInt(1, id);
statement.registerOutParameter(2, Types.VARCHAR);
statement.registerOutParameter(3, Types.INTEGER);
statement.registerOutParameter(4, Types.VARCHAR);
4、执行
statement.execute(); 或 statement.executeUpdate();
5、获取返回
int age = statement.getInt(3);
只是oracle存储过程有的结果集是以游标的方式返回，此时我们需要调用ResultSet rs = (ResultSet) statement.getObject(1);方法回去结果集
二、代码
以下存储过程表结构如下：
DROP TABLE person ; CREATE TABLE person ( id NUMBER(11) NOT NULL , username VARCHAR2(255 ) NULL , age NUMBER(11) NULL , password VARCHAR2(255) NULL , PRIMARY KEY (id) )
1、查询所有记录
存储过程代码如下：
create or replace procedure pro_person_findall(
p_cursor out pkg_const.r_cursor
)
is
begin
open p_cursor for
select * from person;
exception
when others then
DBMS_OUTPUT.PUT_LINE('获取信息发生错误');
end pro_person_findall;
调用代码如下
public static void findAll() {
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:@127.0.0.1:1521:wuxx";
String user = "wuxx";
String password = "wuxx";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
String sql = "{call pro_person_findall2(?)}";
CallableStatement statement = conn.prepareCall(sql);
statement.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
statement.execute();
ResultSet rs = (ResultSet) statement.getObject(1);
ResultSetMetaData rmd = rs.getMetaData();
System.out.print(rmd.getColumnName(1) + " ");
System.out.print(rmd.getColumnName(2) + " ");
System.out.print(rmd.getColumnName(3) + " ");
System.out.print(rmd.getColumnName(4) + "\n");
while (rs.next()) {
System.out.print(rs.getInt("id") + " ");
System.out.print(rs.getString("username") + " ");
System.out.print(rs.getInt("age") + " ");
System.out.print(rs.getString("password") + " \n");
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
2、查询一条记录
存储过程如下
CREATE OR REPLACE PROCEDURE PRO_PERSON_FINDBYID(
v_id IN NUMBER,
v_username OUT VARCHAR2,
v_age OUT NUMBER,
v_password OUT VARCHAR2,
p_count out number
)
AS
BEGIN
SELECT username, age, password INTO v_username, v_age, v_password from person where id = v_id;
p_count := 1;
exception
when others then
p_count := 0;
END;
调用代码如下：
public static void find(Integer id) {
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:@127.0.0.1:1521:wuxx";
String user = "wuxx";
String password = "wuxx";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
String sql = "{call PRO_PERSON_FINDBYID(?,?,?,?,?)}";
CallableStatement statement = conn.prepareCall(sql);
BigDecimal rid = new BigDecimal(id);
statement.setInt(1, id);
statement.registerOutParameter(2, oracle.jdbc.OracleTypes.VARCHAR);
statement.registerOutParameter(3, oracle.jdbc.OracleTypes.NUMBER);
; //
statement.registerOutParameter(4, oracle.jdbc.OracleTypes.VARCHAR);
statement.registerOutParameter(5, oracle.jdbc.OracleTypes.NUMBER);
statement.execute();
int flag = statement.getInt(5);
if (flag != 0)
System.out.println(statement.getString(2) + " "
+ statement.getInt(3) + " " + statement.getString(4));
else
System.out.println("data not found!");
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
3、增加记录
存储过程代码如下：
create or replace procedure pro_person_insert(
p_id number,
p_username varchar2,
p_age number,
p_password varchar2,
p_count out number
)
is
begin
insert into person (id, username, age, password) values(p_id, p_username, p_age, p_password);
p_count := SQL%ROWCOUNT; -- SQL%ROWCOUNT为 隐士游标的属性
commit;
exception
when others then
p_count := 0;
end pro_person_insert;
调用代码如下：
public static void add(Integer id, String username, int age,
String u_password) {
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:@127.0.0.1:1521:wuxx";
String user = "wuxx";
String password = "wuxx";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
String sql = "{call pro_person_insert(?,?,?,?,?)}";
CallableStatement statement = conn.prepareCall(sql);
statement.setInt(1, id);
statement.setString(2, username);
statement.setInt(3, id);
statement.setString(4, u_password);
statement.registerOutParameter(5, oracle.jdbc.OracleTypes.NUMBER);// 增加记录是否成功的标记,1 成功，0失败
statement.execute();
System.out.println(statement.getInt(5));
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
4、更新记录
存储过程代码如下：
create or replace procedure pro_person_update(
p_id number,
p_age number,
p_password varchar2,
p_count out number
)
is
begin
update person set age = p_age, password = p_password where id = p_id;
p_count := SQL%ROWCOUNT;
commit;
exception
when no_data_found then
p_count := 0;
when others then
p_count := -1;
end pro_person_update;
调用代码如下：
public static void update(Integer id, int age, String u_password) {
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:@127.0.0.1:1521:wuxx";
String user = "wuxx";
String password = "wuxx";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
String sql = "{call pro_person_update(?,?,?,?)}";
CallableStatement statement = conn.prepareCall(sql);
statement.setInt(1, id);
statement.setInt(2, age);
statement.setString(3, u_password);
statement.registerOutParameter(4, oracle.jdbc.OracleTypes.NUMBER);// 增加记录是否成功的标记
statement.execute();
System.out.println(statement.getInt(4));
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
5、删除记录
存储过程代码如下：
create or replace procedure pro_person_delete(
p_id number,
p_count out number
)
is
begin
delete from person where id = p_id;
p_count := SQL%ROWCOUNT;
commit;
exception
when no_data_found then
p_count := 0;
when others then
p_count := -1;
end pro_person_delete;
调用代码如下：
public static void delete(Integer id) {
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:@127.0.0.1:1521:wuxx";
String user = "wuxx";
String password = "wuxx";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
String sql = "{call pro_person_delete(?,?)}";
CallableStatement statement = conn.prepareCall(sql);
statement.setInt(1, id);
statement.registerOutParameter(2, oracle.jdbc.OracleTypes.NUMBER);// 增加记录是否成功的标记
statement.execute();
System.out.println(statement.getInt(2));
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
时间： 2024-08-03 13:24:57