2017/09/03 简单搭建SSM框架

简单搭建SSM框架

1.由于熟悉了使用Maven，导包太麻烦了，所以还是使用Maven+Spring+Spring MVC+Mybatis的方式简单搭建一个SSM框架。

2.数据库使用的是Mysql，想要使用Oracle或者其它数据库的，可以在POM.xml中修改相关的依赖包，还有修改jdbc.properties的相关配置即可。

3.现在开始简单介绍一下搭建的相关过程。

a.安装maven插件（依赖包的路径使用的是阿里云的maven数据源

b.新建一个maven project  ----->  直接next  ------>选择Artifact id中尾缀为webapp的一项 ------->输入group id和Artifact id----->点击完成

c.先利用maven导入相关的依赖包：

4.0.0combuildSSMwar0.0.1-SNAPSHOTbuildSSM Maven Webapphttp://maven.apache.org4.0.5.RELEASE
		6.8.8
  junitjunit3.8.1testjavax.servletjavax.servlet-api3.1.0javax.servlet.jspjsp-api2.2javax.servletjstl1.2org.springframeworkspring-jdbc4.0.0.RELEASEorg.springframeworkspring-expressionorg.springframeworkspring-contextorg.springframeworkspring-web4.0.0.RELEASEorg.springframeworkspring-webmvc4.0.0.RELEASEorg.springframeworkspring-test4.0.0.RELEASEorg.mybatismybatis3.2.8org.mybatismybatis-spring1.2.1commons-fileuploadcommons-fileupload1.3.1commons-langcommons-lang2.6commons-codeccommons-codec1.9org.apache.commonscommons-pool22.4.2org.apache.commonscommons-dbcp22.1.1log4jlog4j1.2.17cglibcglib-nodep2.2.2mysqlmysql-connector-java5.1.25taglibsstandard1.1.2net.sf.json-libjson-lib2.4jdk15com.fasterxml.jackson.corejackson-core2.7.4com.fasterxml.jackson.corejackson-annotations2.7.4com.fasterxml.jackson.corejackson-databind2.7.4com.lnsforg.apache.maven.pluginsmaven-compiler-plugin3.31.7  
                1.7org.springframeworkspring-expression4.0.0.RELEASEorg.springframeworkspring-context4.0.0.RELEASE

d.新建实体类包（Entity），新建实体类

e.新建service层，定义各种方法接口

f.新建dao层，定义数据操作类，可以用xml或者直接注解写SQl语句

g.实现serviceImpl层

h.新建test包

I.添加spring mvc的配置文件

j.添加bean.xml

k.添加数据库配置和错误提示配置

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/buildssm
username=root
password=root

log4j.rootLogger=DEBUG,Console
#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=INFO

l.修改项目的web.xml

Archetype Created Web ApplicationcontextConfigLocationclasspath:beans.xmlorg.springframework.web.context.ContextLoaderListener
		index.htmlindex.htmindex.jspdefault.htmldefault.htmdefault.jspdispatcherServlet
			org.springframework.web.servlet.DispatcherServlet
		contextConfigLocationclasspath:springmvc.xml1dispatcherServlet/HiddenHttpMethodFilterorg.springframework.web.filter.HiddenHttpMethodFilter
		HiddenHttpMethodFilter/*springUtf8Encodingorg.springframework.web.filter.CharacterEncodingFilter
		encodingUTF-8forceEncodingtrue

4.项目整体目录结构如下：

5.controller的代码示例：

package com.lnsf.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.lnsf.entity.TestEntity;
import com.lnsf.service.TestService;
import com.lnsf.service.Impl.TestServiceImpl;

@Controller
public class TestController {
	@Autowired
	TestService testService;
	
	@RequestMapping("selectAllTest")
	@ResponseBody
	public TestEntity selectAllTest(){
		TestEntity test= testService.selectAllTest();
		return test;
	}
	
	
}

6.dao层的xml写法和注解写法

		select * from test;
	

package com.lnsf.dao;

import org.apache.ibatis.annotations.Select;

import com.lnsf.entity.TestEntity;

public interface TestDao {
	public TestEntity selectAllTest();
	
	@Select("select * from test")
	public TestEntity selectAllTest2();
	
	@Select("select * from test")
	public TestEntity selectAllTest3();
}

7.service层的示例

package com.lnsf.service;

import com.lnsf.entity.TestEntity;

public interface TestService {
	public TestEntity selectAllTest();
	public TestEntity selectAllTest2();
	public TestEntity selectAllTest3();
}

8.serviceImpl层的示例

package com.lnsf.service.Impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.lnsf.dao.TestDao;
import com.lnsf.entity.TestEntity;
import com.lnsf.service.TestService;
@Service("testService")
public class TestServiceImpl implements TestService {
	@Autowired
	TestDao testDao;
	
	@Override
	public TestEntity selectAllTest() {
		// TODO Auto-generated method stub
		return testDao.selectAllTest();
	}

	@Override
	public TestEntity selectAllTest2() {
		// TODO Auto-generated method stub
	    return testDao.selectAllTest2();
	}

	@Override
	public TestEntity selectAllTest3() {
		// TODO Auto-generated method stub
	    return testDao.selectAllTest3();
	}
}

9.test层的示例

package com.lnsf.test;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestExecutionListeners;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.lnsf.dao.TestDao;
import com.lnsf.entity.TestEntity;
@RunWith(SpringJUnit4ClassRunner.class) //使用Springtest测试框架
@ContextConfiguration("/beans.xml") //加载配置
public class testSSm {
	@Autowired
	TestDao testDao;
	
	@Test
	public void tt(){
		TestEntity test=new TestEntity();
		test=testDao.selectAllTest2();
		System.out.println(test);
	}
}