Java Web项目实战第1篇之环境搭建

时间:2022-05-07 11:58:00

写在前面的话

从今天开始一个Java Web实战项目,参考自 http://blog.csdn.net/eson_15/article/details/51277324 这个博客(非常感谢博主的分享精神)。本博客系列文章也会参考前面博客中项目的进度来写,因此标题可能高度相似,章节结构也可能相似,只是内容排版和行文上会有些区别。

现在开始记录我开发的过程,争取每一个项目中的每一个知识点都有一个比较详细的记录,对每个知识点尽可能记录总结好1. 基本原理,2.框架/工具使用配置, 2.框架/工具/解决方案的基本用法。技术能力需要在实践中得到提高,概念也需要从实践中才能深刻理解,但是光做项目不够,还需要做总结,消化做过的项目,才能真正变成自己的知识。

需要说明的是本博客是边开发变记录, 因此很多东西可能不会很准确,也不会很全面, 后续会逐步订正和完善的。

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下面开始本项目第一篇,环境的搭建,本项目主要使用主流框架SSH来完成。 搭建环境的整体步骤是是,

  1. 搭建好Java Web基础环境, 创建基本的web.xml配置文件
  2. 导入Spring框架Jar包,创建webContext.xml等配置文件,同时在web.xml中配置监听器(listener)来监听Spring容器对象的创建,这样就将Spring框架集成进了Java Web项目。
  3. 导入Hibernate框架Jar包,Hibernate大部分配置都将直接写入Spring的配置文件中,这样就将Hibernate也集成进了Java Web项目
  4. 导入Struts2框架Jar包,需要创建struts.xml用来配置Action, 同时在web.xml中配置过滤器(filter), 拦截器 (interceptor) 用来接管HTTP请求,这样就将struts2集成进了Java Web项目。

一、搭建Java Web基础环境

这个步骤需要注意的是做好java web的基本设置,例如编码之类。以及tomcat的一些基本配置。

1.tomcat的基本配置

下载tomcat,也可以下载xampp集成包,因为里面带有mysql使用方便。解压tomcat目录结构如下,

如果单独配置tomcat,我们需要使用如下一些配置文件

 bin:二进制执行文件。里面最常用的文件是startup.bat,如果是 Linux 或 Mac 系统启动文件为 startup.sh。 启动tomcat后
conf:配置目录。里面最核心的文件是server.xml。可以在里面改端口号等。默认端口号是8080,也就是说,此端口号不能被其他应用程序占用。
lib:库文件。tomcat运行时需要的jar包所在的目录
logs:日志
temp:临时产生的文件,即缓存
webapps:web的应用程序。web应用放置到此目录下浏览器可以直接访问
work:编译以后的class文件。

如果启动上面的startup.bat, 在浏览器输入 http://localhost:8080/, 则可以看到tomcat的控制台页面(经典的汤姆猫页面),本篇暂不对tomcat的管理页面做介绍,因为本项目将使用Eclipse集成tomcat搭建web服务器。
如果要在Eclipse中集成tomcat,则不需要改动以上配置,直接在Eclipse中新建一个server,将路径指向tomcat的根目录即可,并且无需进入tomcat的bin目录去启动tomcat,而是直接在Eclipse中启动。

在Eclipse搭建基本的Java Web运行环境步骤如下,

  1. 在windows->show view->server中,添加tomcat的根目录。 Eclipse将自动配置和部署tomcat,不需要手工拷贝class文件。
  2. 新建一个java dynamic web 应用程序, 其target runtime选择刚才配置好的tomcat, 并勾选自动生成web.xml
  3. 完成前面2步,我们看到在新建的web工程的build path中,已经添加了apache tomcat library了, 此时就可以在WebContent中新建一个index.jsp, 启动tomcat,然后测试这个jsp文件(Run As->Run on Server).

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" alt="" />

这样就算是配置了好了一个能运行的java web应用了, 注意上面的web.xml如果没有自动生成, 可以直接拷贝 tomcat根目录的webapps\examples\WEB-INF\web.xml来用;

如果上面的tomcat library没有导入进web工程, 也可以手动在build path->libraries->Add libraries->Server Runtime中添加tomcat。

2. Eclipse配置全局的编码类型

如果不尽早统一编码, 由于后续需要往工程中添加jsp, java, xml 等多种不同类型的文件, 同时还需要连接数据库, 不同编码的数据在不同载体中传输存储,势必会引起乱码问题, 因此需要尽早统一编码。

在Eclipse中,默认编码是ISO-8859-1,不支持中文,可以设置全局的缺省字符编码(即默认编码),设置步骤如下。

a. windows->preference->general->workspace, 设置textfile encoding  为UTF-8

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alt="" />

b.windows->preference->general->content types, 将右边所有文件都设置为UTF-8

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" 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c. 如果以上方法不起作用,还可以尝试直接找到相应类型的文件设置编码,如下

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" 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二、搭建Spring环境

1.基本的Spring 容器环境搭建

Spring中的jar包多达六七十个,但我们并不需要使用全部jar包。

按照Spring4.2.4 reference大致可以分为,core, aop, message, data access, web, test这6个模块, 我们也可以在Eclipse中分别创建不同的user library, 参考上面博客的分法,我也创建了如下library.

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" alt="" />

当我们导入core和aop两个library之后,就已经可以进行Spring最基本的IOC特性的测试了,下面是一个简单的测试用例。

2. Spring  test模块简介

Spring的test模块中,org.springframework.test.context.junit4包提供在Junit下进行Spring集成测试的功能, 其中SpringJUnit4ClassRunner类提供了Spring容器,注解功能。
要在Junit中做基本的Spring容器测试,只需要在测试类头部添加注解 @RunWith(SpringJUnit4ClassRunner.class)

Junit默认会从类加载目录加载applicationContext.xml配置文件,当然也可以通过类头部的 @ContextConfiguration(locations="classpath*:testSpringContext.xml") 自定义配置文件,

如果在测试类中定义一个自动装配的容器对象

@Autowired

private ApplicationContext ctx

则此容器对象就能自动根据Junit测试类默认的spring配置文件或者自定义的配置文件进行初始化,

此时就能直接在测试类中使用Spring容器对象去加载Spring中的bean了! 一个基本的Junit集成Spring测试类如下,

 @RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath*:testSpringContext.xml")
public class TestSpring {
@Autowired
private ApplicationContext ctx; @Test
public void testSpringIoc() {
TestBean tb = (TestBean)ctx.getBean("testBean");
tb.test();
}
}

现在就在当前的J2eeShop工程中通过Junit测试Spring容器的基本功能,

先创建一个测试Bean,

 package test;

 public class TestBean implements java.io.Serializable {
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public void test() {
System.out.println("this is TestBean.test()");
System.out.println("name="+this.getName()+",age="+this.getAge());
}
}

从spring的文档中拷贝一个配置文件模板内容,在6.2.1 Configuration metadata章节就有一个,然后配置一个最基本的测试bean

 <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <context:component-scan base-package="test" /> <bean id="testBean" class="test.TestBean">
<property name="name" value="zhangsan" />
<property name="age" value="25" />
</bean>
</beans>

创建一个Junit测试类,

 package test;

 import static org.junit.Assert.*;

 import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; @RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath*:testSpringContext.xml")
public class TestSpring {
@Autowired
private ApplicationContext ctx; @Test
public void testSpringIoc() {
TestBean tb = (TestBean)ctx.getBean("testBean");
tb.test();
}
}

执行结果,

this is TestBean.test()
name=张三,age=25

3. 在Web工程中集成Spring

我们上面的步骤仅仅是单独地配置了Web环境和Spring环境,并没有将两者集成起来。 我们在web.xml中配置<context-param>, 用来指定Spring容器的配置文,添加一个<listener>,用来监听Spring容器对象。

     <context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml, /WEB-INF/daoContext.xml</param-value>
</context-param> <listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

这样,当Java web应用启动时, 会负责根据Spring配置文件来初始化一个Sping的容器对象。

4. Java Web加载Spring原理及简单测试

像上面那样将Spring集成到Java web中后,Spring容器就会随着java web应用的启动而启动,但是整个过程的基本原理是怎样的呢。

要弄清楚这个问题,需要先搞清楚java web应用,即servlet在tomcat中的启动过程。

4.1 Java Web应用程序的启动过程

以下文章详细描述了servlet在tomcat中的工作原理,

Servlet 工作原理解析 - https://www.ibm.com/developerworks/cn/java/j-lo-servlet/
Tomcat 系统架构与设计模式,第 2 部分: 设计模式分析 - https://www.ibm.com/developerworks/cn/java/j-lo-tomcat2/

tomcat从启动到为一个java web应用提供服务的过程非常复杂,我将上面的内容高度抽象成下五步,

  1. tomcat启动过程中, 创建web容器(Container)。
  2. 向Container添加web应用,创建servlet容器(servletContext),一个web应用就对应一个servlet容器,即一个servletContext对象。
  3. 初始化servletContext:包括解析tomcat配置(server.xml等)以及web应用程序配置(主要是web.xml),加载servlet class文件等。
  4. 根据web.xml文件,初始化其中的filter, servlet, listener等
  5. 启动http服务,响应客户端请求

4.2 servlet事件监听及spring容器加载

前面说了java web应用程序的启动过程,那么集成在java web中的spring容器又是如何加载的呢?

我们知道tomcat会使用观察者/广播订阅的设计模式来通知事件的发生,当一个servlet容器(即创建了servletContext对象)启动,即发生了一个servlet容器创建事件,

tomcat中的web容器会将这个事件通知给相应监听对象。

在4.1节的第4步中,servletContext对象将会根据web.xml配置创建listener对象,我们在第3节中在web.xml配置了一个ContextLoaderListener监听器,

这是spring提供的一个监听器,servlet容器在初始化的时候会根据web.xml配置创建这样的监听器对象,这个监听器有什么作用呢?

查看这个监听器的源码如下,

 public class ContextLoaderListener extends ContextLoader
implements ServletContextListener
{
...
public void contextInitialized(ServletContextEvent event)
{
initWebApplicationContext(event.getServletContext());
}
...
}

可见这个监听器实现了servlet包中的ServletContextListener接口,并重写其中的contextInitialized方法,

根据servlet技术描述,servlet中的ServletContextListener实现类的实例可以监听servlet容器的启动(即创建servletContext对象)事件,并回调contextInitialized方法。

也就是说当上面的java web应用启动之后,将会通知spring的这个监听类对象,并回调被spring监听类重写的contextInitialized方法,

而在这个由spring监听器重写的回调方法中,进行了spring容器的初始化!即创建spring容器对象WebApplicationContext,并将此对象保存在servlet容器(即servletContext对象)中。

至此,java web容器完成了所有初始化工作,同时加载了spring容器,可以在web应用中直接使用注册在spring中的bean了,

上面过程比较复杂,下面再简要总结一下java web应用加载spring容器的过程,

  1. servlet容器创建spring listener对象
  2. web容器发出servlet容器启动成功的通知,spring的listener对象监听到事件
  3. spring的listener对象进行spring容器的初始化,并将spring容器保存进servlet容器中
  4. servlet容器加载了spring容器,此时可以直接在servlet实例中使用spring容器中的bean了

4.3 直接在jsp中测试spring和java web的集成

当我们完成了java web应用于spring的集成配置之后,就可以进行简单的测试了,我们可以直接在jsp中通过WebApplicationContextUtils获取spring容器对象,

index.jsp

 <%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@page import="org.springframework.web.context.WebApplicationContext" %>
<%@page import="org.springframework.web.context.support.WebApplicationContextUtils" %>
<%@page import="test.TestBean" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>Hello World</h1>
<%
WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());
TestBean tb = (TestBean) ctx.getBean("testBean");
out.println("<h1>"+tb.getName()+"</h1>");
tb.setName("lisi");
%>
</body>
</html>

关键代码,

 <%
WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());
TestBean tb = (TestBean) ctx.getBean("testBean");
out.println("<h1>"+tb.getName()+"</h1>");
tb.setName("lisi");
%>

执行结果,可以看我们并没有显式地初始化spring容器,而是用工具WebApplicationContextUtils(本质上是获取由servlet容器初始化的spring容器)到了spring容器对象,将spring容器中的testBean的属性打印出来了,

Java Web项目实战第1篇之环境搭建

到这里,spring框架就整合到了java web项目中,下一步是要整合Hibernate框架。

三、搭建Hibernate环境

首先也是导入Hibernat的必要jar包,以及Hibernate提供的一些第三方工具包(例如数据池C3P0和二级缓存ehcache),