SpringMvc从属性文件读取常量

原文：SpringMvc从属性文件读取常量

源代码下载地址：http://www.zuidaima.com/share/1550463705844736.htm

Spring配置文件中

<!-- 扫描常量类-->

<bean id="constants" class="com.support.Constants"/>

类中调用 Constants.DEFAULT_PAGE

属性文件(filed.propertites)

#2*1024*1024 file.thresholdSize=2097152

#100*1024*1024 file.maxSize=104857600

# 分页参数

#默认页数从0开始 DEFAULT_PAGE=0

#默认每页记录数 DEFAULT_SIZE=10

package com.zuidaima.megalith.support;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;


/**
 * 
 * <p>
 * 项目常量定义
 * </p>
 * 
 *
 * 
 * 
 * 
 * @version V1.0.0
 * 
 * @author www.zuidaima.com
 * 
 * @date 2013-7-10 上午11:36:34
 * 
 * @class com.support.Constants
 * 
 */
public class Constants {

	/*---------------------- 默认分页参数 ---------------------*/
	/**
	 * 默认页数从0开始
	 */
	public static Integer DEFAULT_PAGE;
	/**
	 * 默认每页记录数
	 */
	public static Integer DEFAULT_SIZE;

	/*----------------------Session key ----------------------*/
	public static String SESSION_USER;
	public static String SESSION_USER_NAME;

	/*---------------------FileUpload fileds ----------------*/
	public static Integer FILE_THRESHOLD_SIZE;
	public static String FILE_TEMP_PATH;
	public static Integer FILE_MAX_SIZE;
	public static String FILE_REAL_PATH;
	
	/*---------------------ResouceUpload Path ----------------*/
	public static String ZIPPATH_UPLOAD;//默认资源文件zip包上传目录
	public static String ZIPPATH_UNZIP;//默认资源文件解压后目录
	public static String TEMPLATE_PATH;//默认模板文件上传后路径
	

	Properties props = new Properties();
	InputStream inputStream = null;
	public Constants() {
		try {
			inputStream = getClass().getResourceAsStream("/filed.properties");
			props.load(inputStream);
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (inputStream != null) {
				try {
					inputStream.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		FILE_TEMP_PATH = props.getProperty("file.tempPath");
		FILE_THRESHOLD_SIZE = Integer.parseInt(props.getProperty("file.thresholdSize"));
		FILE_MAX_SIZE = Integer.parseInt(props.getProperty("file.maxSize"));
		FILE_REAL_PATH = props.getProperty("file.realPath");
		DEFAULT_PAGE = Integer.parseInt(props.getProperty("DEFAULT_PAGE"));
		DEFAULT_SIZE = Integer.parseInt(props.getProperty("DEFAULT_SIZE"));
		SESSION_USER = props.getProperty("SESSION_USER");
		SESSION_USER_NAME = props.getProperty("SESSION_USER_NAME");
		
		ZIPPATH_UNZIP = props.getProperty("ZIPPATH_UNZIP");
		ZIPPATH_UPLOAD = props.getProperty("ZIPPATH_UPLOAD");
		TEMPLATE_PATH = props.getProperty("TEMPLATE_PATH");
	}

}