IDEA 详细SSM框架的搭建

IDEA 搭建SSM框架

搭建SSM框架最后的目录结构

一.步骤

1.Maven -----> Create from archetype (注：Project SDK 选择本地安装版本) ----> maven-archetype-webapp ----> Next

2.点击Next进入该页面，填写GroupId、ArtifactId（groupId一般是域名的反写，也作为项目中类的包名，artifactId是工程名，也就是根文件夹名）

3.然后选择Next，Maven home directory选择maven本地安装路径；勾上User setting file 的 Override前的√，选择本地maven安装的settings.xml配置文件路径

4.继续next，选择项目保存的位置，点击finish

5.构建项目目录: main 右击选择 Directory 创建 java 和 resources两个文件； 再后点击右上角（画箭头号）处，弹出该界面；选择java点击Sources,选择resources点击Resources,之后Apply点击OK;

二.配置文件

1.pom.xml配置

  4.0.0

  com.springmvc
  hellobeijing
  1.0-SNAPSHOT
  war

  hellobeijing Maven Webapp
  
  http://maven.apache.org

  
    
    4.2.5.RELEASE
    
    3.2.4
    
    1.6.6
    1.2.12
  
  
    
    
    
      org.springframework
      spring-core
      ${spring.version}
    

    
      org.springframework
      spring-web
      ${spring.version}
    

    
      org.springframework
      spring-oxm
      ${spring.version}
    

    
      org.springframework
      spring-tx
      ${spring.version}
    

    
      org.springframework
      spring-jdbc
      ${spring.version}
    

    
      org.springframework
      spring-webmvc
      ${spring.version}
    

    
      org.springframework
      spring-aop
      ${spring.version}
    

    
      org.springframework
      spring-context-support
      ${spring.version}
    

    
      org.springframework
      spring-test
      ${spring.version}
    
    

    
    
      org.mybatis
      mybatis
      ${mybatis.version}
    
    
    
      org.mybatis
      mybatis-spring
      1.2.2
    
    
    
      mysql
      mysql-connector-java
      5.1.29
    
     
    
      com.mchange
      c3p0
      0.9.5.2
    
    
    
      junit
      junit
      4.11
      test
    
    
    
      javax.servlet
      jstl
      1.2
    
    
      javax.servlet.jsp
      jsp-api
      2.2.1-b03
      provided
    

    
    
      javax.servlet
      servlet-api
      2.5
      provided
    
    
    
      com.fasterxml.jackson.core
      jackson-core
      2.7.1
    
    
      com.fasterxml.jackson.core
      jackson-annotations
      2.7.1
    
    
      com.fasterxml.jackson.core
      jackson-databind
      2.7.1
    
    
      net.sf.json-lib
      json-lib
      2.4
      jdk15
    
    
    
      commons-lang
      commons-lang
      2.4
    
    
      commons-logging
      commons-logging
      1.1
    
    
      commons-pool
      commons-pool
      1.5.6
    
    
      commons-dbcp
      commons-dbcp
      1.4
    
    
      commons-beanutils
      commons-beanutils
      1.8.3
    
    
      commons-httpclient
      commons-httpclient
      3.1
    
    
      commons-collections
      commons-collections
      3.1
    
    
      commons-codec
      commons-codec
      1.9
    
    
      javax.annotation
      jsr250-api
      1.0
    

    
      net.sf.ezmorph
      ezmorph
      1.0.6
    
    
      javax.activation
      activation
      1.1
    
    
      taglibs
      standard
      1.1.2
    
    
    
    
      log4j
      log4j
      ${log4j.version}
    
    
      org.slf4j
      slf4j-api
      ${slf4j.version}
    
    
      org.slf4j
      slf4j-log4j12
      ${slf4j.version}
    
    
    
      commons-fileupload
      commons-fileupload
      1.3.1
    
    
      commons-io
      commons-io
      2.4
    
    
  
  
    helloworld
    
      
        org.mybatis.generator
        mybatis-generator-maven-plugin
        1.3.2
        
          
          true
          
          true
        
      
    
  

2.jdbc.properties配置

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=MuLin_20190822
#最大连接数
maxPoolSize=20
#最小连接数
minPoolSize=10
#连接超时时间
checkoutTimeout=60000
#失败重连次数
acquireRetryAttempts=3

3.mybatis-config.xml配置

4.applicationContext.xml配置

5. dispatcherServlet.xml配置

6.web.xml配置

    Archetype Created Web Application
    
    
        contextConfigLocation
        classpath:spring/applicationContext.xml
    

    
    
        encodingFilter
        org.springframework.web.filter.CharacterEncodingFilter
        
            encoding
            UTF-8
        
    
    
        encodingFilter
        /*
    

    
        org.springframework.web.context.ContextLoaderListener
    

    
    
        
        SpringMVC
        org.springframework.web.servlet.DispatcherServlet
        
            contextConfigLocation
            classpath:dispatcherServlet.xml
        
        
        1
    
    
        SpringMVC
        
        /
    

三.配置log4j日志

1.pom.xml配置

   
    
    1.6.6
    1.2.12
  
    
    
    
      log4j
      log4j
      ${log4j.version}
    
    
      org.slf4j
      slf4j-api
      ${slf4j.version}
    
    
      org.slf4j
      slf4j-log4j12
      ${slf4j.version}
    
    

2.log4j.properties配置

### set log levels ###
log4j.rootLogger = INFO,D

###输出到控制台###
log4j.logger.toConsole=debug,stdout
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout


log4j.appender.stdout.layout.ConversionPattern =%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %c -%F(%L) -%m%n

### 输出到日志文件 ###
##  其中File 可以采用绝对路径 亦可以采用相对路径 catalina.home 是tomcat目录  如果没有logs文件夹 将会报错  ##
##  更加倾向于将日志文件放在  D:/database/log4j/log4jTest/logtest.log ##
##  绝对路径如：e:/logtest.log ##
log4j.logger.daily=INFO,D
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = D:/database/log4j/log4jTest/logtest.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern =%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %c -%F(%L) -%m%n


##log4j.logger.org.apache.ibatis=debug,stdout
##log4j.logger.java.sql=debug,stdout

四.Mybatis-Generator自动生成Dao、Model层相关代码

1.pom.xml配置

注意：mybatis-generator-maven-plugin 插件的plugins标签要与pluginManagement标签并列，不然在右边Maven中找不到该插件

    
      org.mybatis.generator
      mybatis-generator-core
      1.3.5
    



      
        org.mybatis.generator
        mybatis-generator-maven-plugin
        1.3.5
        
          true
          true
        
      
    

2.generatorConfig.xml配置

3.找到 Maven ----> …Webapp -----> Plugins -----> mybatis-generator(注！！！：这里有时候会发现没有该插件，这时是pom.xml中mybatis-generator-maven-plugin 插件的plugins标签要与pluginManagement标签并列) -----> mybatis-generator:generate -----> 右击 选择 Run Maven Build

4.mybatis-generator自动生成的结果

五.开发

1.数据库

2.UserService.java

package com.springmvc.service;

import com.springmvc.dao.UserMapper;
import com.springmvc.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
@Transactional
public class UserService {
    @Autowired
    UserMapper userMapper;

    public User getUserById(Integer id){
        return userMapper.selectByPrimaryKey(id);
    }

}

3.UserController.java

package com.springmvc.controller;

import com.springmvc.entity.User;
import com.springmvc.service.UserService;
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.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;

@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;

    @RequestMapping(value="/getUser",method = RequestMethod.GET)
    @ResponseBody
    public User getUser(Integer id){
        User user = userService.getUserById(id);
        return user;
    }
}

有时候 private UserService userService 加上 @Autowired 会报编译错误，解决方案：

找到该页面，将 Autowiring for Bean Class √去掉，Apply OK

六.配置Tomcat

1.按照图选择 Edit Configurations…

2.Name:tomcat命名；Application server:选中本地安装目录；JRE：选中本地安装的jdk路径

3.点击 Deployment 进入该页面，点击 ‘+’选中“…:war exploded”;Application context 可以修改项目访问路径的项目名，如：http://localhost:8080/ssm

4.Apply OK 之后，Tomcat 配置成功；

七.测试

出现上面结果，表示测试成功！！！