IllegalArgumentException occurred calling getter of com.vote.entity.vote_subject

2016-10-04 05:35:23 336 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

基于Spring Boot+Vue的运动健康管理系统毕设实战指南在软件开发领域，前后端分离架构已成为构建现代Web应用的主流范式。其核心原理是将用户界面（前端）与业务逻辑和数据（后端）解耦，通过API进行通信，从而提升开发效率和系统可维护性。这种架构模式的技术价值在于实现了关注点分离，便于团队协作和技术栈独立演进。在众多应用场景中，管理系统是典型代表，它涉及用户、数据、增删改查和可视化等通用需求。本文聚焦于一个具体的工程实践案例——运动健康管理系统，它完美契合了当前“健康中国”和数字化管理的趋势。项目采用经典的Spring Boot + Vue.js技术栈，结合MySQ 阅读详情

Vote_Subject

/**

 * 投票内容

 * 

 * @author Tan

 * 

 */

public class vote_subject {



	private Integer vs_id;

	private String vs_title;

	private Integer vs_type;

	private Set<vote_option> options = new HashSet<vote_option>();



	public vote_subject() {

	}



	public vote_subject(Integer vs_id, String vs_title, int vs_type) {

		this.vs_id = vs_id;

		this.vs_title = vs_title;

		this.vs_type = vs_type;

	}



	/**

	 * 

	 * @return ID

	 */

	public Integer getVs_id() {

		return vs_id;

	}



	public void setVs_id(Integer vs_id) {

		this.vs_id = vs_id;

	}



	/**

	 * 

	 * 

	 * @return 投票内容

	 */

	public String getVs_title() {

		return vs_title;

	}



	public void setVs_title(String vs_title) {

		this.vs_title = vs_title;

	}



	/**

	 * 

	 * 

	 * @return 投票类型

	 */

	public Integer getVs_type() {

		return vs_type;

	}



	public void setVs_type(Integer vs_type) {

		//投票类型      1:单选       2:多选          默认：1

		if (vs_type == 1 || vs_type == 2) {

			this.vs_type = vs_type;

		}else{

			vs_type=1;

		}

	}







	/**

	 *

	 * @return

	 */



	public Set<vote_option> getOptions() {

		return options;

	}



	public void setOptions(Set<vote_option> options) {

		this.options = options;

	}

Vote_option



public class vote_option {

	private Integer vo_id;

	private String vo_option;

	private vote_subject vs_id;

	private String vo_order;



	public vote_option() {

	}



	public vote_option(Integer vo_id, String vo_option, vote_subject vs_id,

			String vo_order) {

		this.vo_id = vo_id;

		this.vo_option = vo_option;

		this.vs_id = vs_id;

		this.vo_order = vo_order;

	}



	/**

	 * 

	 * @return ID

	 */

	public Integer getVo_id() {

		return vo_id;

	}



	public void setVo_id(Integer vo_id) {

		this.vo_id = vo_id;

	}



	/**

	 * 投票选项 

	 * @return

	 */

	public String getVo_option() {

		return vo_option;

	}



	public void setVo_option(String vo_option) {

		this.vo_option = vo_option;

	}



	/**

	 * 投票内容ID

	 * @return

	 */

	public vote_subject getVs_id() {

		return vs_id;

	}



	public void setVs_id(vote_subject vs_id) {

		this.vs_id = vs_id;

	}



	/**

	 * 显示顺序

	 * @return

	 */

	public String getVo_order() {

		return vo_order;

	}



	public void setVo_order(String vo_order) {

		this.vo_order = vo_order;

	}

Action



public class vote_subjectAction extends ActionSupport {

	private vote_subject subject = new vote_subject(); // 投票

	private String[] options;  //选项

	

	public String[] getOptions() {

		return options;

	}



	public void setOptions(String[] options) {

		this.options = options;

	}



	/* 实例化*/

	private vote_subjectServicesDao sdao = new vote_subjectServicesDaoImpl();



	public vote_subject getSubject() {

		return subject;

	}



	public void setSubject(vote_subject subject) {

		this.subject = subject;

	}

	/**

	 * 添加投票

	 * 

	 * @return

	 * @throws Exception

	 */

	public String save() throws Exception {

		//选项

		String[] order={"A","B","C","D","E","F"};

		try {

			for(int i=0;i<this.options.length;i++){

				vote_option op = new vote_option();

				op.setVo_option(this.options[i]);/*选项*/

				op.setVo_order(order[i]);  /*排序*/

				op.setVs_id(this.subject);  

				this.subject.getOptions().add(op);

				sdao.save(this.subject);

			}

			return SUCCESS;

		} catch (Exception e) {

			e.printStackTrace();

			return ERROR;

		}

	}

双向一对多的关联关系 ‘
映射文件

Vote_Subject.hbm.xml



<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">



<hibernate-mapping>

	<class name="com.vote.entity.vote_subject" table="vote_subject">

		<id name="vs_id" type="java.lang.Integer">

			<column name="vs_id"></column>

			<generator class="increment"></generator>

		</id>

		

		<property name="vs_title" type="java.lang.String">

			<column name="vs_title"></column>

		</property>

		

		<property name="vs_type" type="java.lang.Integer">

			<column name="vs_type"></column>

		</property>

		

		<set name="options" table="vote_option" cascade="all" lazy="false" inverse="false">

			<key>

				<column name="vs_id"></column>

			</key>

			<one-to-many class="com.vote.entity.vote_subject"/>

		</set>

	</class>

</hibernate-mapping>

’

Vote_Option.hbm.xml



<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">



<hibernate-mapping>

	<class name="com.vote.entity.vote_option" table="vote_option">

		<id name="vo_id" type="java.lang.Integer">

			<column name="vo_id"></column>

			<generator class="increment"></generator>

		</id>

		

		<property name="vo_option" type="java.lang.String">

			<column name="vo_option"></column>

		</property>

		

		<many-to-one name="vs_id" class="com.vote.entity.vote_subject">

			<column name="vs_id"></column>

		</many-to-one>

		

		<property name="vo_order" type="java.lang.String">

			<column name="vo_order"></column>

		</property>

	</class>

</hibernate-mapping>