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velocity配置详解

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文章引自:
http://www.open-china.net/blog/41388.html

[size=medium][size=small]velocity配置详解
在velocity二方包中有一个velocity.properties
文件定义了velocity的配置信息(位于org.apache.velocity.runtime.defaults package下,org.apache.velocity.runtime.RuntimeConstants中定义了key值)

#模板编码:

input.encoding=ISO-8859-1 //模板输入编码
output.encoding=ISO-8859-1 //模板输出编码

#foreach配置

directive.foreach.counter.name = velocityCount //计数器名称
directive.foreach.counter.initial.value = 1 //计数器初始值
directive.foreach.maxloops = -1 //最大循环次数,-1为默认不限制 directive.foreach.iterator.name = velocityHasNex //迭代器名称

#set配置

directive.set.null.allowed = false //是否可设置空值

#include配置

directive.include.output.errormsg.start = <!-- include error : //错误信息提示开始字符串
directive.include.output.errormsg.end = see error log --> //错误信息提示结束字符串

#parse配置

directive.parse.max.depth = 10 //解析深度

模板加载器配置

resource.loader = file //模板加载器类型,默认为文件,可定义多个

file.resource.loader.description = Velocity File Resource Loader //加载器描述
file.resource.loader.class = Velocity.Runtime.Resource.Loader.FileResourceLoader //加载器类名称
file.resource.loader.path = . //模板路径
file.resource.loader.cache = false //是否启用模板缓存
file.resource.loader.modificationCheckInterval = 2 //检查模板更改时间间隔

宏配置

velocimacro.permissions.allow.inline = true //是否可以行内定义
velocimacro.permissions.allow.inline.to.replace.global = false //是否可以用行内定义代替全局定义
velocimacro.permissions.allow.inline.local.scope = false //行内定义是否只用于局部

velocimacro.context.localscope = false //宏上下文是否只用于局部
velocimacro.max.depth = 20 //解析深度

velocimacro.arguments.strict = false //宏参数是否启用严格模式

资源管理器配置

resource.manager.class = Velocity.Runtime.Resource.ResourceManagerImpl //管理器类名称
resource.manager.cache.class = Velocity.Runtime.Resource.ResourceCacheImpl //缓存器类名称

解析器池配置

parser.pool.class = Velocity.Runtime.ParserPoolImpl //解析池类名称
parser.pool.size = 40 //初始大小

#evaluate配置

directive.evaluate.context.class = Velocity.VelocityContext //上下问类名称

可插入introspector配置
runtime.introspector.uberspect = Velocity.Util.Introspection.UberspectImpl //默认introspector类名称

更详细的可以参考:

velocity.properties
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this
work for
additional information
# regarding copyright ownership.  The ASF licenses this
file
# to you under the Apache License, Version 2.0 (the
# "License"
); you may not use this
file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0

#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS"
BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for
the
# specific language governing permissions and limitations
# under the License.   

# ----------------------------------------------------------------------------
# R U N T I M E  L O G
# ----------------------------------------------------------------------------

# ----------------------------------------------------------------------------
#  default
LogChute to use: default
: AvalonLogChute, Log4JLogChute, CommonsLogLogChute, ServletLogChute, JdkLogChute
# ----------------------------------------------------------------------------

runtime.log.logsystem.class = org.apache.velocity.runtime.log.AvalonLogChute,org.apache.velocity.runtime.log.Log4JLogChute,org.apache.velocity.runtime.log.CommonsLogLogChute,org.apache.velocity.runtime.log.ServletLogChute,org.apache.velocity.runtime.log.JdkLogChute

# ---------------------------------------------------------------------------
# This is the location of the Velocity Runtime
log.
# ----------------------------------------------------------------------------

runtime.log = velocity.log

# ----------------------------------------------------------------------------
# This controls whether invalid references are logged.
# ----------------------------------------------------------------------------

runtime.log.invalid.references = true


# ----------------------------------------------------------------------------
# T E M P L A T E  E N C O D I N G
# ----------------------------------------------------------------------------

input.encoding=ISO-8859-1
output.encoding=ISO-8859-1

# ----------------------------------------------------------------------------
# F O R E A C H  P R O P E R T I E S
# ----------------------------------------------------------------------------
# These properties control how the counter is accessed in the #foreach
# directive. By default
the reference $velocityCount and $velocityHasNext
# will be available in the body of the #foreach directive.
# The default
starting value for
$velocityCount is 1.
# ----------------------------------------------------------------------------

directive.foreach.counter.name = velocityCount
directive.foreach.counter.initial.value = 1
directive.foreach.maxloops = -1

directive.foreach.iterator.name = velocityHasNext

# ----------------------------------------------------------------------------
# S E T  P R O P E R T I E S
# ----------------------------------------------------------------------------
# These properties control the behavior of #set.
# For compatibility, the default
behavior is to disallow setting a reference
# to null
.  This default
may be changed in a future
version.
# ----------------------------------------------------------------------------

directive.set.null
.allowed = false


# ----------------------------------------------------------------------------
# I F  P R O P E R T I E S
# ----------------------------------------------------------------------------
# These properties control the behavior of #if

# Default behavior is to check return
value of toString() and treat an object
# with toString() that returns null
as null
. If all objects have toString()
# methods that never return
null
, this
check is unnecessary and can be disabled
# to gain performance. In Velocity 1.5, no such null
check was performed.
directive.if
.tostring.nullcheck = true


# ----------------------------------------------------------------------------
# I N C L U D E  P R O P E R T I E S
# ----------------------------------------------------------------------------
# These are the properties that governed the way #include"d content
# is governed.
# ----------------------------------------------------------------------------

directive.include.output.errormsg.start = <!-- include error :
directive.include.output.errormsg.end   =  see error log -->

# ----------------------------------------------------------------------------
# P A R S E  P R O P E R T I E S
# ----------------------------------------------------------------------------

directive.parse.max.depth = 10

# ----------------------------------------------------------------------------
# T E M P L A T E  L O A D E R S
# ----------------------------------------------------------------------------
#
#
# ----------------------------------------------------------------------------

resource.loader = file

file.resource.loader.description = Velocity File Resource Loader
file.resource.loader.class = org.apache.velocity.runtime.resource.loader.FileResourceLoader
file.resource.loader.path = .
file.resource.loader.cache = false

file.resource.loader.modificationCheckInterval = 2

# ----------------------------------------------------------------------------
# VELOCIMACRO PROPERTIES
# ----------------------------------------------------------------------------
# global : name of default
global library.  It is expected to be in the regular
# template path.  You may remove it (either the file or this
property) if

# you wish with no harm.
# ----------------------------------------------------------------------------
# velocimacro.library = VM_global_library.vm

velocimacro.permissions.allow.inline = true

velocimacro.permissions.allow.inline.to.replace.global = false

velocimacro.permissions.allow.inline.local.scope = false


velocimacro.context.localscope = false

velocimacro.max.depth = 20

# ----------------------------------------------------------------------------
# VELOCIMACRO STRICT MODE
# ----------------------------------------------------------------------------
# if
true
, will throw
an exception for
incorrect number
# of arguments.  false
by default
(for
backwards compatibility)
# but this
option will eventually be removed and will always
# act as if
true

# ----------------------------------------------------------------------------
velocimacro.arguments.strict = false


# ----------------------------------------------------------------------------
# STRICT REFERENCE MODE
# ----------------------------------------------------------------------------
# if
true
, will throw
a MethodInvocationException for
references
# that are not defined in the context, or have not been defined
# with a #set directive. This setting will also throw
an exception
# if
an attempt is made to call a non-existing property on an object
# or if
the object is null
.  When this
property is true
then property
# "directive.set.null
.allowed" is also set to true
.
# ----------------------------------------------------------------------------
runtime.references.strict = false


# ----------------------------------------------------------------------------
# INTERPOLATION
# ----------------------------------------------------------------------------
# turn off and on interpolation of references and directives in string
# literals.  ON by default

# ----------------------------------------------------------------------------
runtime.interpolate.string.literals = true



# ----------------------------------------------------------------------------
# RESOURCE MANAGEMENT
# ----------------------------------------------------------------------------
# Allows alternative ResourceManager and ResourceCache implementations
# to be plugged in.
# ----------------------------------------------------------------------------
resource.manager.class = org.apache.velocity.runtime.resource.ResourceManagerImpl
resource.manager.cache.class = org.apache.velocity.runtime.resource.ResourceCacheImpl

# ----------------------------------------------------------------------------
# PARSER POOL
# ----------------------------------------------------------------------------
# Selects a custom factory class for
the parser pool.  Must implement
# ParserPool.  parser.pool.size is used by the default
implementation
# ParserPoolImpl
# ----------------------------------------------------------------------------

parser.pool.class = org.apache.velocity.runtime.ParserPoolImpl
parser.pool.size = 20


# ----------------------------------------------------------------------------
# EVENT HANDLER
# ----------------------------------------------------------------------------
# Allows alternative event handlers to be plugged in.  Note that each
# class property is actually a comma-separated list of classes (which will
# be called in order).
# ----------------------------------------------------------------------------
# eventhandler.referenceinsertion.class =
# eventhandler.nullset.class =
# eventhandler.methodexception.class =
# eventhandler.include.class =


# ----------------------------------------------------------------------------
# EVALUATE
# ----------------------------------------------------------------------------
# Evaluate VTL dynamically in template.  Select a class for
the Context
# ----------------------------------------------------------------------------

directive.evaluate.context.class = org.apache.velocity.VelocityContext


# ----------------------------------------------------------------------------
# PLUGGABLE INTROSPECTOR
# ----------------------------------------------------------------------------
# Allows alternative introspection and all that can of worms brings.
# ----------------------------------------------------------------------------

runtime.introspector.uberspect = org.apache.velocity.util.introspection.UberspectImpl


# ----------------------------------------------------------------------------
# SECURE INTROSPECTOR
# ----------------------------------------------------------------------------
# If selected, prohibits methods in certain classes and packages from being
# accessed.
# ----------------------------------------------------------------------------

introspector.restrict.packages = java.lang.reflect

# The two most dangerous classes

introspector.restrict.classes = java.lang.Class

introspector.restrict.classes = java.lang.ClassLoader

               
# Restrict these for
extra safety

introspector.restrict.classes = java.lang.Compiler

introspector.restrict.classes = java.lang.InheritableThreadLocal
introspector.restrict.classes = java.lang.Package
introspector.restrict.classes = java.lang.Process

introspector.restrict.classes = java.lang.Runtime

introspector.restrict.classes = java.lang.RuntimePermission
introspector.restrict.classes = java.lang.SecurityManager

introspector.restrict.classes = java.lang.System

introspector.restrict.classes = java.lang.Thread

introspector.restrict.classes = java.lang.ThreadGroup

introspector.restrict.classes = java.lang.ThreadLocal
[/size][/size]
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