小编Hit*_*nki的帖子

我正在开发一个小型Spring应用程序.我必须将学生信息的详细信息存储在数据库中.我开发了一个SimpleFormController.我使用过NetBeans + Hibernate映射+ Spring.部署项目时,会发生以下错误.

我的spring-config-db-applicationContext.xml如下所示:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!-- Hibernate session factory -->
  <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <constructor-arg index="0">
        <value>${driverClassName}</value>
    </constructor-arg>
    <constructor-arg index="1">
        <value>${url}</value>
    </constructor-arg>
    <constructor-arg index="2">
        <value>${username}</value>
    </constructor-arg>
    <constructor-arg index="3">
        <value>${password}</value>
    </constructor-arg>
  </bean>


  <bean id="sessionFactory"  class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource">
        <ref bean="dataSource"/>
    </property>
    <!-- <property name="configLocation">
        <value>WEB-INF/classes/hibernate.cfg.xml</value>
    </property> -->
    <property  name="mappingResources" >
        <list>
            <value>hibernate.cfg.xml</value>
        </list>
    </property>

  <!--  <property  name="configurationClass">
        <value>org.hibernate.cfg.AnnotationConfiguration</value>
    </property> -->

    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">${dialect}</prop>
            <prop key="hibernate.show_sql">true</prop>
  <!--<prop key="hibernate.hbm2ddl.auto">create</prop>-->
        </props>
    </property>
  </bean>
  <bean …

Hiii ...我想使用getSystemResourceAsStream()将属性文件的内容输入到InputStream类对象中.我已经构建了示例代码.它使用main()方法很好用,但是当我部署项目并在服务器上运行时,无法获取属性文件路径...所以inputstream对象存储空值.

示例代码在这里..

public class ReadPropertyFromFile {

    public static Logger logger = Logger.getLogger(ReadPropertyFromFile.class);

    public static String readProperty(String fileName, String propertyName) {
        String value = null;
        try {
            //fileName = "api.properties";
            //propertyName = "api_loginid";

            System.out.println("11111111...In the read proprty file.....");


            //  ClassLoader loader = ClassLoader.getSystemClassLoader();

            InputStream inStream = ClassLoader.getSystemResourceAsStream(fileName);

            System.out.println("In the read proprty file.....");
            System.out.println("File Name :" + fileName);
            System.out.println("instream = "+inStream);

            Properties prop = new Properties();

            try {
                prop.load(inStream);
                value = prop.getProperty(propertyName);
            } catch (Exception e) {
                logger.warn("Error occured while reading …