springMVC数据绑定

package com.yzy.controller;


import com.yzy.entity.Course;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class dataBindHandler {

    //基本数据类型
    @RequestMapping(value = "/baseType")
    @ResponseBody
    public String baseType(@RequestParam(value = "id") int id){
        return "id:"+id;
    }

    //包装类
    @RequestMapping(value = "/packageType")
    @ResponseBody
    public String packageType(@RequestParam(value = "id") Integer id){
        return "id:"+id;
    }

    //字符串数组
    @RequestMapping(value = "/arrayType")
    @ResponseBody
    public String arrayType(String[] name){
        StringBuffer stringBuffer=new StringBuffer();
        for(String str:name){
            stringBuffer.append(str).append(" ");
        }
        return stringBuffer.toString();
    }

    //对象（表单的name值与对象的属性名对应即可完成对象的封装）
    @RequestMapping("/pojoType")
    public ModelAndView pojoType(Course course){
        ModelAndView modelAndView=new ModelAndView();
        modelAndView.addObject("course",course);
        modelAndView.setViewName("index");
        return modelAndView;
    }

                        td>${course.id}td>    --取值方式--%>
                        td>${course.name}td>
                        td>${course.price}td>
                        td>${course.author.name}td>   --级联对象的取值--%>

public class CourseList {
    private List courses;

    public List getCourses() {
        return courses;
    }

    public void setCourses(List courses) {
        this.courses = courses;
    }
}

 input type="text" class="form-control" name="courses[0].id" placeholder="请输入课程编号">

input type="text" class="form-control" name="courses[‘one‘].id" placeholder="请输入课程编号">

@RequestMapping(value = "/listType")
    public ModelAndView listType(CourseList courseList){
        for(Course course:courseList.getCourses()){
            courseDAO.add(course);
        }
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("index");
        modelAndView.addObject("courses",courseDAO.getAll());
        return modelAndView;
    }

    dependency>
      groupId>com.fasterxml.jackson.coregroupId>
      artifactId>jackson-databindartifactId>
      version>2.8.3version>
    dependency>

    mvc:annotation-driven>
        mvc:message-converters>
            bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">bean>
        mvc:message-converters>
    mvc:annotation-driven>

    @RequestMapping(value = "/jsonType")
    @ResponseBody
    public  Course jsonType(@RequestBody  Course course){  //通过解析request中的json数据，生成对应的实体对象
        course.setPrice(course.getPrice()+100);
        return course;
    }