这段时间开始学习写存储过程,主要原因还是因为工作需要吧,本来以为很简单的,但几经挫折,豪气消磨殆尽,但总算搞通了,为了避免后来者少走弯路,特记述与此,同时亦对自己进行鼓励。 YtpKm,H
一:无返回值的存储过程 wO !5IYT.v
存储过程为: FU`-mQ"R
CREATE OR REPLACE PROCEDURE TESTA(PARA1 IN VARCHAR2,PARA2 IN VARCHAR2) AS <:<"{;-j
BEGIN ?u/ }7p
INSERT INTO HYQ.B_ID (I_ID,I_NAME) VALUES (PARA1, PARA2); Oh?N I]
END TESTA; -`TC>kXE
然后呢,在java里调用时就用下面的代码: Yw0nog
package com.hyq.src; v>@6tw
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import java.sql.*; O*"lb-EoG
import java.sql.ResultSet; nYb!X[c
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public class TestProcedureOne { n&a7 t%
public TestProcedureOne() { yMhsxN,BG{
} R+<kL@ei
public static void main(String[] args ){ ?.qj#dc{]
String driver = "oracle.jdbc.driver.OracleDriver"; 5 Vl.#
String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521: hyq "; 2tI# @_
Statement stmt = null; /:YSk7rJ?
ResultSet rs = null; ?ovL+F
Connection conn = null; &:uhUvDz
CallableStatement cstmt = null; z*=iz {b6
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try { o0TW,J2[n
Class.forName(driver); { tPro
conn = DriverManager.getConnection(strUrl, " hyq ", " hyq "); 5Y~t_QXF
CallableStatement proc = null; n+49l o
proc = conn.prepareCall("{ call HYQ.TESTA(?,?) }"); Y&U+y{D`;
proc.setString(1, "100"); Bam<flhzn
proc.setString(2, "TestOne"); 0%2 Ivn>:
proc.execute(); u ,< `9X
} =%Y4/
catch (SQLException ex2) { ;- #YYW
ex2.printStackTrace(); ,a\GR(czg
} *"p[O@rf
catch (Exception ex2) { V%`M4GN=
ex2.printStackTrace(); 'iZ[g[~v@P
} !fVZ%_n
finally{ Zh sxd =
try { 7QSo$RuXR
if(rs != null){ g?fs_
rs.close(); ^[ ' ;
if(stmt!=null){ ?(87\<PK)
stmt.close(); 6N6Ot<L
} 1?[* a
if(conn!=null){ ,sA }f`x`
conn.close(); GMuQ`.!
} )N\q1B\%
} Wm%/
} ee[[?t2,
catch (SQLException ex1) { %h{13`S2
} -Z6OB,y
} = gOrX|@7
} *Ain?m 3
} 4K>Y@oG
当然了,这就先要求要建张表TESTTB,里面两个字段(I_ID,I_NAME)。 v<nDSwX
二:有返回值的存储过程(非列表) A@DKHMLhd
存储过程为: F0oEfPW
CREATE OR REPLACE PROCEDURE TESTB(PARA1 IN VARCHAR2,PARA2 OUT VARCHAR2) AS Oss6D,,m
BEGIN U)N]e8s
SELECT INTO PARA2 FROM TESTTB WHERE I_ID= PARA1; Jc^:~N lNh
END TESTB; l) uw>It*%
在java里调用时就用下面的代码: P)+Fo&
package com.hyq.src; Vx]y-|0
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public class TestProcedureTWO { f|cY]xn
public TestProcedureTWO() { }aQEOGGYmi
} h|UzFwg
public static void main(String[] args ){ X>d@Aqz}`
String driver = "oracle.jdbc.driver.OracleDriver"; D uL O/
String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521:hyq"; j(jS C?Z
Statement stmt = null; x5u+QLNW
ResultSet rs = null; T,Z2:xZ|4m
Connection conn = null; v;oL5Y5
try { H)O2 <C>m
Class.forName(driver); LkHm/ $W
conn = DriverManager.getConnection(strUrl, " hyq ", " hyq "); IZ$gmuZ;
CallableStatement proc = null; tJ@6>yf
proc = conn.prepareCall("{ call HYQ.TESTB(?,?) }"); MADJu<M
proc.setString(1, "100"); =4"6%SI
proc.registerOutParameter(2, Types.VARCHAR); [cl4JL
proc.execute(); 9>m!&.
String testPrint = proc.getString(2); @V~&_QQR
System.out.println("=testPrint=is="+testPrint); ]@w@xK
} h'xKv."6'
catch (SQLException ex2) { 0kR /Z_=)
ex2.printStackTrace(); CQ*t*FT4
} YcC@Y1?%
catch (Exception ex2) { 3&~g{M8
ex2.printStackTrace(); N=^D5-MR
} dknZNZ[r+
finally{ 3?gQYOGDoI
try { \|]{mUbx
if(rs != null){ (g %WyKV$
rs.close(); a JKz&~
if(stmt!=null){ giMM*\M$W
stmt.close(); h&yWUs>Z/
} fS)L2gr
if(conn!=null){ 9 am;%jG
conn.close(); Xg(n_!5O
} WiDMl gW
} &}7{X @
} 7{ -qPtIid
catch (SQLException ex1) { WB5O^E
} 2&X; 4;N
} @QB6S?IUJ
} u Lzj
} DgGB:zN
= `XgFlNY"
} U &EJhVy Y
注意,这里的proc.getString(2)中的数值2并非任意的,而是和存储过程中的out列对应的,如果out是在第一个位置,那就是proc.getString(1),如果是第三个位置,就是proc.getString(3),当然也可以同时有多个返回值,那就是再多加几个out参数了。 FoHtDBPq
三:返回列表 g.xRjJRs
由于oracle存储过程没有返回值,它的所有返回值都是通过out参数来替代的,列表同样也不例外,但由于是集合,所以不能用一般的参数,必须要用pagkage了.所以要分两部分, o@zecM0%
1, 建一个程序包。如下: $"k (2
CREATE OR REPLACE PACKAGE TESTPACKAGE AS CN SyDN~Yj
TYPE Test_CURSOR IS REF CURSOR; rr\h`_u"LN
end TESTPACKAGE; zK[-pi
2,建立存储过程,存储过程为: U4%cTfs_J
CREATE OR REPLACE PROCEDURE TESTC(p_CURSOR out TESTPACKAGE.Test_CURSOR) IS D)3uQKP
BEGIN zn$'Gh^k8
OPEN p_CURSOR FOR SELECT * FROM HYQ.TESTTB; S0Zo1m"D
END TESTC; %y8sKxu=
可以看到,它是把游标(可以理解为一个指针),作为一个out 参数来返回值的。 ~?c s1"!
在java里调用时就用下面的代码: (%n" ;}m
package com.hyq.src; [:?W?U #
import java.sql.*; ?)].bx
import java.io.OutputStream; !5z*d}!Z
import java.io.Writer; Q?@|G $;
import java.sql.PreparedStatement; Zy' rX~Lw
import java.sql.ResultSet; tz,c~F* &
import oracle.jdbc.driver.*; B=Pen(/sgf
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public class TestProcedureTHREE { rs~xaN
public TestProcedureTHREE() { nOB!! n~
} jc7L!Q dE
public static void main(String[] args ){ y<6jj9h?>
String driver = "oracle.jdbc.driver.OracleDriver"; g&J]OEsvN
String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521:hyq"; XF|%JJek
Statement stmt = null; As%\g"'(W
ResultSet rs = null; sF2yE(V5
Connection conn = null; U3uL(>}\A!
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try { /LlPvho
Class.forName(driver); g@v0[(~
conn = DriverManager.getConnection(strUrl, "hyq", "hyq"); &v,H'%eTe
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CallableStatement proc = null; a?1@5||g)
proc = conn.prepareCall("{ call hyq.testc(?) }"); [Q] daB
proc.registerOutParameter(1,oracle.jdbc.OracleTypes.CURSOR); t:/x|:?j
proc.execute(); p `j,U
rs = (ResultSet)proc.getObject(1); (E7eLavr$
&e5|0/
while(rs.next()) h04b-Yd
{ *Ns`-]?mz
System.out.println("<tr><td>" + rs.getString(1) + "</td><td>"+rs.getString(2)+"</td></tr>"); A7=DM%l.
} )nriD ]O
} -JeVyA^
catch (SQLException ex2) { X,$2l%:
ex2.printStackTrace(); S& =sE/6
} |Jo##$^ }
catch (Exception ex2) { Tz&F/D8BEP
ex2.printStackTrace(); J9|1=(TS
} 7 8!xA
finally{ R*1.8'3mE
try { "'l{Q#f=
if(rs != null){ \]QHMJX>
rs.close(); 'A9b$OqX
if(stmt!=null){ XKJ^5zSn
stmt.close(); _pf20A4b
} 3ROF_7r>
if(conn!=null){ fAt9EGJv
conn.close(); Xt;hM98`o
} 8t,kBK
} 4w]# Bc-t
} GEOi%.
catch (SQLException ex1) { $6l=H@)g
} O2G* UM
} x^xIyw(0V
} R>\/mY]g
}
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