java调用oracle存储过程详解
步骤：
1、编写oracle存储过程
2、编写数据库获取连接工具类
3、编写简单应用调用存储过程
实现：
1、oracle存储过程：
/*测试表*/ create table test( id varchar2(32), name varchar2(32) ); /*存储过程 插入数据*/ create or replace procedure insert_procedure( para1 in varchar2, para2 in varchar2 ) as begin insert into test (id, name) values (para1, para2); end insert_procedure; /*存储过程 返回结果集*/ create or replace procedure select_procedure( para_id in varchar2, name out sys_refcursor /* 这个sys_refcursor类型在sys.standard包中 */ ) as begin open name for select * from test where id = para_id; end;
2、jdbc工具类
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import java.sql.connection;
import java.sql.drivermanager;
import java.sql.resultset;
import java.sql.sqlexception;
import java.sql.statement;
public class dbutil {
public static final string driver = "oracle.jdbc.driver.oracledriver";
public static final string url = "jdbc:oracle:thin:@localhost:1521/orcl";
public static final string username = "pfm";
public static final string password = "pfm";
/**
* 通过静态代码块 注册数据库驱动
*/
static {
try {
class.forname(driver);
} catch (classnotfoundexception e) {
e.printstacktrace();
}
}
/**
* 获得connection
*
* @return
*/
public static connection getconnection() {
connection conn = null;
try {
conn = drivermanager.getconnection(url, username, password);
} catch (sqlexception e) {
e.printstacktrace();
}
return conn;
}
/**
* 获得statement
*
* @return
*/
public static statement getstatement() {
statement st = null;
try {
st = getconnection().createstatement();
} catch (sqlexception e) {
e.printstacktrace();
}
return st;
}
/**
* 关闭resultset
*
* @param rs
*/
public static void closeresultset(resultset rs) {
if (rs != null) {
try {
rs.close();
} catch (sqlexception e) {
e.printstacktrace();
}
}
}
/**
* 关闭statement
*
* @param st
*/
public static void closestatement(statement st) {
if (st != null) {
try {
st.close();
} catch (sqlexception e) {
e.printstacktrace();
}
}
}
/**
* 关闭connection
*
* @param conn
*/
public static void closeconnection(connection conn) {
if (conn != null) {
try {
conn.close();
} catch (sqlexception e) {
e.printstacktrace();
}
}
}
/**
* 关闭全部
*
* @param rs
* @param sta
* @param conn
*/
public static void closeall(resultset rs, statement sta, connection conn) {
closeresultset(rs);
closestatement(sta);
closeconnection(conn);
}
}
3、调用存储过程：
import java.sql.callablestatement;
import java.sql.connection;
import java.sql.preparedstatement;
import java.sql.resultset;
import java.sql.sqlexception;
import oracle.jdbc.driver.oracletypes;
/**
* 测试调用存储过程
*
*/
public class storedtest {
public static void main(string[] args) {
insert_call();
//select_call();
}
/**
* 执行存储过程 插入数据
*/
public static void insert_call() {
connection conn = dbutil.getconnection();
preparedstatement pst = null;
callablestatement proc = null; // 创建执行存储过程的对象
try {
proc = conn.preparecall("{ call insert_procedure(?,?) }");
proc.setstring(1, "1"); // 设置第一个输入参数
proc.setstring(2, "hello call"); // 设置第一个输入参数
proc.execute();// 执行
} catch (sqlexception e) {
e.printstacktrace();
} finally {
try {
// 关闭io流
proc.close();
dbutil.closeall(null, pst, conn);
} catch (exception e) {
e.printstacktrace();
}
}
}
/**
* 执行存储过程 查询数据
*/
public static void select_call() {
connection conn = dbutil.getconnection();
callablestatement stmt;
try {
stmt = conn.preparecall("{ call select_procedure(?, ?) }"); // 用此调用方法不能实现多行语法
stmt.setstring(1, "1");
stmt.registeroutparameter(2, oracletypes.cursor);
stmt.execute();
resultset rs = (resultset) stmt.getobject(2);
while (rs.next()) {
system.out.println(rs.getstring("name"));
}
} catch (sqlexception e) {
e.printstacktrace();
} finally {
dbutil.closeconnection(conn);
}
}
}
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