在linux中怎么安装jvm

Linux安装JDK步骤1. 先从网上下载jdk(jdk-1_5_0_02-linux-i586.rpm)

，推荐SUN的官方网站www.sun.com，下载后放在/home目录中，当然其它地方也行。

进入安装目录

#cd /home

#cp jdk-1_5_0_02-linux-i586.rpm /usr/local

#cd /usr/local

给所有用户添加可执行的权限

#chmod +x jdk-1_5_0_02-linux-i586.rpm.bin

#./jdk-1_5_0_02-linux-i586.rpm.bin

此时会生成文件jdk-1_5_0_02-linux-i586.rpm，同样给所有用户添加可执行的权限

#chmod +x jdk-1_5_0_02-linux-i586.rpm

安装程序

#rpm -ivh jdk-1_5_0_02-linux-i586.rpm

出现厅缓安装协议等，按接受即可。

Linux安装JDK步骤2.设置环境变量。

#vi /etc/profile

在最后面加入

#set java environment

JAVA_HOME=/usr/java/jdk-1_5_0_02

CLASSPATH=.:＄JAVA_HOME/lib.tools.jar

PATH=＄JAVA_HOME/扮备模bin:＄PATH

export JAVA_HOME CLASSPATH PATH

保存退出。

要使JDK在所有的用户中使用，可以这样：

vi /etc/profile.d/java.sh

在新的java.sh中输入以下内容：

#set java environment

JAVA_HOME=/usr/java/jdk-1_5_0_02

CLASSPATH=.:＄JAVA_HOME/lib/tools.jar

PATH=＄JAVA_HOME/bin:＄PATH

export JAVA_HOME CLASSPATH PATH

保存退滚毁出，然后给java.sh分配权限：chmod 755 /etc/profile.d/java.sh

Linux安装JDK步骤3.在终端使用echo命令检查环境变量设置情况。

#echo ＄JAVA_HOME

#echo ＄CLASSPATH

#echo ＄PATH

4.检查JDK是否安装成功。

#java -version

如果看到JVM版本及相关信息，即安装成功！

测试环境，创建user的时候，遇到错误如衫腊腊下：

SQL>grant javasyspriv to XXXX

*

ERROR at line 1:

ORA-01919: role 'JAVASYSPRIV' does not exist

SQL>

原来是因为安装的时候，用silent模式，或滑执行sql的时候，少了一些。

当前信息：

SQL>SELECT comp_name || ' : '||version|| ' : '|| status FROM dba_registry

COMP_NAME||':'||VERSION||':'||STATUS

--------------------------------------------------------------------------------

Oracle Database Catalog Views : 11.2.0.3.0 : VALID

Oracle Database Packages and Types : 11.2.0.3.0 : VALID

SQL>

按照文局郑档执行安装（就是两个sql）。

cd $ORACLE_HOME

SQL>@?/javavm/install/initjvm.sql

SQL>@?/rdbms/admin/catjava.sql

然后验证一下：

SQL>SELECT comp_name || ' : '||version|| ' : '|| status FROM dba_registry

COMP_NAME||':'||VERSION||':'||STATUS

--------------------------------------------------------------------------------

Oracle Database Catalog Views : 11.2.0.3.0 : VALID

Oracle Database Packages and Types : 11.2.0.3.0 : VALID

JServer JAVA Virtual Machine : 11.2.0.3.0 : VALID

Oracle Database Java Packages : 11.2.0.3.0 : VALID

SQL>grant javasyspriv to XXXXX

Grant succeeded.

SQL>

参考了URL如下：

http://abcdba.com/abcdbaserverinstallguideshowtoinstalloraclejvm

How To Install Oracle JVM

BACKGROUND &OVERVIEW

Oracle Java Virtual Machine (JVM) is a feature of the Oracle Database. It provides the ability to run java code from within the database.

This document explains the full set of steps that need to be taken in order to perform a complete and working installation.

ASSUMPTIONS &PRE-REQUISITES

This document expects and assumes the following:

The instructions are carried out by a qualified DBA, fully conversant with Oracle.

A fully working database without JVM exists.

All references to SID should be replaced with correct database name as derived using the database naming standard.

STEP-BY-STEP GUIDE

As SYS, confirm the JVM is not already installed.

SELECT comp_id, comp_name FROM dba_registryshould not list JAVAM or CATJAVA.

As SYS, perform the JVM installation.

@?/javavm/install/initjvm.sql

@?/rdbms/admin/catjava.sql

As SYS, confirm the JVM is now fully installed:

SELECT comp_id, comp_name FROM dba_registry

COMP_IDCOMP_NAME

--------- --------------------------------------------

EM Oracle Enterprise Manager

CATALOGOracle Database Catalog Views

CATPROCOracle Database Packages and Types

JAVAVM JServer JAVA Virtual Machine

CATJAVAOracle Database Java Packages

HEALTHCHECK

In addition, the following healthcheck can be performed to confirm the stability of the installed JVM, further details can be found in Metalink Article 456949.1:

connect / as sysdba

spool jvm_stats.log

set serveroutput on

set echo on

set pagesize500

set linesize 100

column comp_name format a40

select comp_name, version, status from dba_registry

select owner, status, count(*) from all_objects

where object_type like '%JAVA%' group by owner, status

select owner, object_type, count(*) from all_objects

where object_type like '%JAVA%' and status <>'VALID' group by owner, object_type

select owner, status, object_type, object_name from all_objects

where object_name like'%DBMS_JAVA%'

select owner, status, object_type, object_name from all_objects

where object_name like'%INITJVMAUX%'

select role from dba_roles where role like '%JAVA%'

select * from v$sgastat where POOL = 'java pool' or NAME = 'free memory'

show parameter pool_size

show parameter sga

select owner, object_type, status, dbms_java.longname(object_name) from all_objects

where object_type like '%JAVA%' and status <>'VALID'

spool off

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