Properties文件解析

Posted 2021-11-29 wf2010517141

Properties文件中存放的是key=value类型的数据，便于查看和修改，下面的方法是一种很好用的解析方法：

1、resources下新建application.properties文件

#跳转路径
app.redirect.port=8081
app.redirect.host=http://{0}:{1}/bi


#pds接口账户
service.client.pds.url=http://pds.nriet.com/Windchill/servlet/IE/tasks/ext/bi/BI_GetChangeInfo.xml?year={0}&month={1}
service.client.pds.username=wcadmin
service.client.pds.password=!qaz2wsx3edc

#crm接口用戶信息
crm.client.url=https://site.cloudcc.com/api/appURL/get
crm.client.username=[email protected]
crm.client.password=111111

#erp接口采购质量清单
erp.quality.url=https://site.cloudcc.com/api/appURL/get
erp.quality.nameSpace=[email protected]
erp.quality.method=GetPurchaseQualityList

#erp接口生产外包清单
erp.outer.url=https://site.cloudcc.com/api/appURL/get
erp.outer.nameSpace=[email protected]
erp.outer.method=GetProductOuterList

2、新增PropertiesUtil工具类，用于解析properties，如下

package com.glaway.foundation.common.util;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.Properties;

public class PropertiesUtil
{
  private String properiesName = "";
  
  public PropertiesUtil() {}
  
  public PropertiesUtil(String fileName)
  {
    this.properiesName = fileName;
  }
  
  public String readProperty(String key)
  {
    value = "";
    InputStream is = null;
    try
    {
      is = PropertiesUtil.class.getClassLoader().getResourceAsStream(this.properiesName);
      Properties p = new Properties();
      p.load(is);
      return p.getProperty(key);
    }
    catch (IOException e)
    {
      e.printStackTrace();
    }
    finally
    {
      try
      {
        is.close();
      }
      catch (IOException e)
      {
        e.printStackTrace();
      }
    }
  }
  
  public Properties getProperties()
  {
    p = new Properties();
    InputStream is = null;
    try
    {
      is = PropertiesUtil.class.getClassLoader().getResourceAsStream(this.properiesName);
      p.load(is);
      













      return p;
    }
    catch (IOException e)
    {
      e.printStackTrace();
    }
    finally
    {
      try
      {
        is.close();
      }
      catch (IOException e)
      {
        e.printStackTrace();
      }
    }
  }
  
  public void writeProperty(String key, String value)
  {
    InputStream is = null;
    OutputStream os = null;
    Properties p = new Properties();
    try
    {
      is = new FileInputStream(this.properiesName);
      p.load(is);
      
      os = new FileOutputStream(PropertiesUtil.class.getClassLoader().getResource(this.properiesName).getFile());
      
      p.setProperty(key, value);
      p.store(os, key);
      os.flush();
      os.close(); return;
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
    finally
    {
      try
      {
        if (null != is) {
          is.close();
        }
        if (null != os) {
          os.close();
        }
      }
      catch (IOException e)
      {
        e.printStackTrace();
      }
    }
  }
  
  public static Properties getProperties(String propertiesFilePath)
  {
    Properties prop = new Properties();
    try
    {
      prop.load(Thread.currentThread().getContextClassLoader().getResourceAsStream(propertiesFilePath));
    }
    catch (IOException e)
    {
      return null;
    }
    return prop;
  }
  
  public static void main(String[] args)
  {
    PropertiesUtil p = new PropertiesUtil("sysConfig.properties");
    p.writeProperty("namess", "wang");
    LogUtil.info(p.readProperty("namess"));
  }
}

3、调用PropertiesUtil工具类解析*.properties文件

package com.glaway.offline.test.main;

import com.glaway.foundation.common.util.PropertiesUtil;


public class PropertiesTest {

    public static void main(String[] args) {
        PropertiesUtil p = new PropertiesUtil("application.properties");
        String pds_url = p.readProperty("service.client.pds.url");
        System.out.println("pds_url="+pds_url);    //pds_url=http://pds.nriet.com/Windchill/servlet/IE/tasks/ext/bi/BI_GetChangeInfo.xml?year={0}&month={1}
    }

}