ResourceUtils读取properties文件

注意:

　　properties文件要放在classPath下面，也就是与src下。

path.properties

perfectMaterial=fileLibrary/completeFile/perfectMaterial
perfectMaterialPDF=fileLibrary/completeFile/perfectMaterialPDF
promiseFile=fileLibrary/originalFile/promiseFile
signatureFile=signature
signatureBackupFile=signatureBackup
investigatePicture=fileLibrary/originalFile/investigatePicture
auditPicture=fileLibrary/originalFile/auditPicture
auditReprt=fileLibrary/originalFile/auditReprt
sevenMaterial=fileLibrary/originalFile/sevenMaterial
sevenMaterialPdf=fileLibrary/originalFile/PDFFile/sevenMaterialPdf
auditReportWordAndPdf=fileLibrary/originalFile/auditReportWordAndPdf
jdbc.test=fileLibrary/originalFile/auditReportWordAndPdf

 ResourcesUtil.java

package Utils.ResourceUtil;

import java.io.Serializable;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.Set;

/**
 * 资源文件读取工具类
 *
 */
public class ResourcesUtil implements Serializable {

    private static final long serialVersionUID = -7657898714983901418L;

    /**
     * 系统语言环境，默认为中文zh
     */
    public static final String LANGUAGE = "zh";

    /**
     * 系统国家环境，默认为中国CN
     */
    public static final String COUNTRY = "CN";
    private static Locale getLocale() {
        Locale locale = new Locale(LANGUAGE, COUNTRY);
        return locale;
    }

    /**
     * 根据语言、国家、资源文件名和key名字获取资源文件值
     *
     * @param language
     *            语言
     *
     * @param country
     *            国家
     *
     * @param baseName
     *            资源文件名
     *
     * @param section
     *            key名字
     *
     * @return 值
     */
    private static String getProperties(String baseName, String section) {
        String retValue = "";
        try {
            Locale locale = getLocale();
            ResourceBundle rb = ResourceBundle.getBundle(baseName, locale);
            retValue = (String) rb.getObject(section);
        } catch (Exception e) {
            e.printStackTrace();
            // TODO 添加处理
        }
        return retValue;
    }

    /**
     * 通过key从资源文件读取内容
     *
     * @param fileName
     *            资源文件名
     *
     * @param key
     *            索引
     *
     * @return 索引对应的内容
     */
    public static String getValue(String fileName, String key) {
        String value = getProperties(fileName,key);
        return value;
    }

    public static List<String> gekeyList(String baseName) {
        Locale locale = getLocale();
        ResourceBundle rb = ResourceBundle.getBundle(baseName, locale);

        List<String> reslist = new ArrayList<String>();

        Set<String> keyset = rb.keySet();
        for (Iterator<String> it = keyset.iterator(); it.hasNext();) {
            String lkey = (String)it.next();
            reslist.add(lkey);
        }

        return reslist;

    }

    /**
     * 通过key从资源文件读取内容，并格式化
     *
     * @param fileName
     *            资源文件名
     *
     * @param key
     *            索引
     *
     * @param objs
     *            格式化参数
     *
     * @return 格式化后的内容
     */
    public static String getValue(String fileName, String key, Object[] objs) {
        String pattern = getValue(fileName, key);
        String value = MessageFormat.format(pattern, objs);
        return value;
    }

    public static void main(String[] args) {
        System.out.println(getValue("resources.messages", "101",new Object[]{100,200}));

        //根据操作系统环境获取语言环境
        /*Locale locale = Locale.getDefault();
        System.out.println(locale.getCountry());//输出国家代码
        System.out.println(locale.getLanguage());//输出语言代码s

        //加载国际化资源（classpath下resources目录下的messages.properties，如果是中文环境会优先找messages_zh_CN.properties）
        ResourceBundle rb = ResourceBundle.getBundle("resources.messages", locale);
        String retValue = rb.getString("101");//101是messages.properties文件中的key
        System.out.println(retValue);

        //信息格式化，如果资源中有{}的参数则需要使用MessageFormat格式化，Object[]为传递的参数，数量根据资源文件中的{}个数决定
        String value = MessageFormat.format(retValue, new Object[]{100,200});
        System.out.println(value);
*/

    }
}

测试代码

package Utils.ResourceUtil;

import org.junit.Test;

public class TestUtils {

    @Test
    public void Test1(){
        System.out.println(ResourcesUtil.getValue("path", "investigatePicture"));
        System.out.println(ResourcesUtil.getValue("path", "auditReprt"));
        System.out.println(ResourcesUtil.getValue("path", "jdbc.test"));
    }
}

结果:

fileLibrary/originalFile/investigatePicture
fileLibrary/originalFile/auditReprt
fileLibrary/originalFile/auditReportWordAndPdf