一、逆向工程生成基础信息
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public static void main(String[] arhs) throws Exception{
List warnings = new ArrayList(); boolean overwrite = true;
File configFile = new File("src.main.resources/generator.xml");
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = cp.parseConfiguration(configFile);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
myBatisGenerator.generate(null);
}
二、springMVC与Mybatis整合 各个配置文件
1.项目结构
2、各个文件的核心代码
a.web.xml
index.jsp
contextConfigLocation
classpath:spring/applicationContext-*.xml
org.springframework.web.context.ContextLoaderListener
log4jConfigLocation
classpath:log4j.properties
log4jRefreshInterval
3000
org.springframework.web.util.Log4jConfigListener
SpringEncodingFilter
org.springframework.web.filter.CharacterEncodingFilter
encoding
UTF-8
forceEncoding
true
SpringEncodingFilter
*.do
springMvc
org.springframework.web.servlet.DispatcherServlet
contextConfigLocation
classpath:spring/springmvc.xml
1
springMvc
*.do
30
b、config/mybatis/applicationContext-mybatis.xml
c、config/spring/applicationContext-dao.xml
${jdbc_driverClassName}
${jdbc_url}
${jdbc_username}
${jdbc_password}
20
1
60000
20
3
true
180
clientEncoding=UTF-8
d、config/spring/applicationContext-service.xml
e、config/spring/springmvc.xml
f、config/jdbc.properties
jdbc_driverClassName=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=UTF-8
jdbc_username=root
jdbc_password=111111
g、config/log4j.properties
#在开发环境下的日志级别 要设置成debug，生成环境设置成info 或error
log4j.rootLogger=debug, stdout
log4j.logger.org.apache.ibatis=debug
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
h、com/jalja/springmvc_mybatis/controller/ItemsController.java
package com.jalja.springmvc_mybatis.controller;import java.io.File;import java.util.List;import java.util.UUID;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.multipart.MultipartFile;import com.jalja.springmvc_mybatis.exception.CustomException;import com.jalja.springmvc_mybatis.model.custom.ItemsCustom;import com.jalja.springmvc_mybatis.service.ItemsService;/**
* 商品
* @author PC003
*conterver参数转换器 springMvc提供了很多参数转换器 */@Controller
@RequestMapping("/items") //窄化请求映射public class ItemsController {
@Autowired ItemsService itemsService;
@RequestMapping(value="/findItemsList") public String findItemsList(Model model) throws Exception{
List itemsList=itemsService.findItemsList(null);
System.out.println(itemsList);
model.addAttribute("itemsList", itemsList); return "itemsList";
}
@RequestMapping(value="/editItems", method={RequestMethod.POST,RequestMethod.GET}) //限制Http请求方式 //@RequestParam 将请求参数 与 形式参数进行绑定 required:指定属性必须传入值 defaultValue:设置默认值
public String editItems(Model model, @RequestParam(value="id",required=true,defaultValue="0") Integer itemsId) throws Exception{
ItemsCustom itemsCustom=itemsService.findItemsById(itemsId); if(itemsCustom==null){ throw new CustomException("商品不存在");
}
model.addAttribute("itemsCustom", itemsCustom); return "editItems";
}
@RequestMapping(value="/updateItems") public String editItemsSubmit(Integer id,ItemsCustom itemsCustom,MultipartFile itemsPic) throws Exception{
String uploadFileName=itemsPic.getOriginalFilename();//获取上传的文件名
if(itemsPic!=null && uploadFileName!=null && !uploadFileName.equals("")){
String p_w_picpathsPath="E:\\develop\\upload\\p_w_picpaths\\";
String newFileName=UUID.randomUUID()+uploadFileName.substring(uploadFileName.lastIndexOf("."),uploadFileName.length());
File newFile=new File(p_w_picpathsPath+newFileName);
itemsPic.transferTo(newFile);//将内存中的数据写入磁盘 itemsCustom.setPic(newFileName);
}
itemsService.updateItemsById(id, itemsCustom); return "redirect:findItemsList.do"; //重定向 } //JSON的使用 @ResponseBody：将对像转json输出 @RequestBody:将请求参数转 java对象
@RequestMapping(value="/jsonRequest") public @ResponseBody ItemsCustom jsonRequest(@RequestBody ItemsCustom itemsCustom) throws Exception{ return itemsCustom;
} //RestFul 风格 编程 /restFulRequest/{id}：表示将这个位置的参数传到 @PathVariable 指定的名称中
@RequestMapping(value="/restFulRequest/{id}") public @ResponseBody ItemsCustom restFulRequest(@PathVariable("id") Integer id) throws Exception{
ItemsCustom itemsCustom=itemsService.findItemsById(id); return itemsCustom;
}
}
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