com.jn.langx.commandline.environment

类 EnvironmentUtils

java.lang.Object

com.jn.langx.commandline.environment.EnvironmentUtils

public class EnvironmentUtils
extends Object

Wrapper for environment variables.

方法概要

限定符和类型	方法和说明
static void	addVariableToEnvironment(Map<String,String> environment, String keyAndValue) Add a key/value pair to the given environment.
static Map<String,String>	getProcEnvironment() Find the list of environment variables for this process.
static String[]	toStrings(Map<String,String> environment) Get the variable list as an array.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

toStrings

public static String[] toStrings(Map<String,String> environment)

Get the variable list as an array.

参数:

environment - the environment to use, may be null

返回:

array of key=value assignment strings or null if and only if the input map was null

getProcEnvironment

public static Map<String,String> getProcEnvironment()
                                             throws IOException

Find the list of environment variables for this process. The returned map preserves the casing of a variable's name on all platforms but obeys the casing rules of the current platform during lookup, e.g. key names will be case-insensitive on Windows platforms.

返回:

a map containing the environment variables, may be empty but never null

抛出:

IOException - the operation failed

addVariableToEnvironment

public static void addVariableToEnvironment(Map<String,String> environment,
                                            String keyAndValue)

Add a key/value pair to the given environment. If the key matches an existing key, the previous setting is replaced.

参数:

environment - the current environment

keyAndValue - the key/value pair