谈谈Spring 注入properties文件总结

谈谈Spring 注入properties文件总结

spring提供了多种方式来注入properties文件，本文做一个简单的总结。

在Spring配置文件中引入

方式一

通过标签

方式二

通过

1、MySQL.properties

#

ds1.jdbc.driverClassName=com.mysql.jdbc.Driver

ds1.jdbc.url=jdbc:mysql://localhost:3306/process?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull

ds1.jdbc.username=root

ds1.jdbc.password=root

ds2.jdbc.driverClassName=com.mysql.jdbc.Driver

ds2.jdbc.url=jdbc:mysql://localhost:3306/process?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull

ds2.jdbc.username=root

ds2.jdbc.password=root

2、applicationContext.xml

xsi:schemaLocation="

http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/util

http://springframework.org/schema/util/spring-util.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context.xsd"

default-lazy-init="false">

xsi:schemaLocation="

http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/util

http://springframework.org/schema/util/spring-util.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context.xsd"

default-lazy-init="false">

在代码中注入

方式一

1、config.properties

name=ricky

age=27

password=root

2、applicationContext.xml

class="org.springframework.beans.factory.config.PropertiesFactoryBean">

classpath:config.properties

class="org.springframework.beans.factory.config.PropertiesFactoryBean">

classpath:config.properties

3、使用@Value注解

package com.ricky.codelab.springmvc.domain;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.stereotype.Component;

/**

* ${DESCRIPTION}

*

* @author Ricky Fung

* @create 2016-08-08 15:49

*/

@Component("userService")

public class UserServiceImpl implements IUserService {

private final Logger logger = LoggerFactory.getLogger(getClass());

@Value("#{config[name]}")

private String name;

@Value("#{config[age]}")

private Integer age;

@Value("#{config[password]}")

private String password;

@Override

public void login(String username){

System.out.println("name:"+name+",age="+age+",password="+password);

}

}

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