springmvc+mongodb+maven 项目测试代码

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代码结构图

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直接上代码

BaseDao.java

package com.yiyuwanglu.basecore.dao;

import java.util.List;

public interface BaseDao {

	<T> T findById(Class<T> entityClass, String id);

	<T> List<T> findAll(Class<T> entityClass);

	void remove(Object obj);

	void add(Object obj);

	void saveOrUpdate(Object obj);
}

MongoDBBaseDao.java

package com.yiyuwanglu.basecore.dao.mongodb;

import java.util.Collection;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Repository;

import com.yiyuwanglu.basecore.dao.BaseDao;
import com.yiyuwanglu.basecore.page.Page;

/**
 * mongodb数据泛型dao类
 *
 * @author hjn
 * @version 1.0 2014-09-16
 */
@Repository(value = "mongoDBBaseDao")
public class MongoDBBaseDao implements BaseDao {
	@Autowired
	@Qualifier("mongoTemplate")
	protected MongoTemplate mongoTemplate;

	/**
	 * 依据主键id返回对象
	 *
	 * @param id
	 *            唯一标识
	 * @return T 对象
	 */
	public <T> T findById(Class<T> entityClass, String id) {
		return this.mongoTemplate.findById(id, entityClass);
	}

	/**
	 * 依据类获取所有的对象列表
	 *
	 * @param entityClass
	 *            返回类型
	 * @return List<T> 返回对象列表
	 */
	public <T> List<T> findAll(Class<T> entityClass) {
		return this.mongoTemplate.findAll(entityClass);
	}

	/**
	 * 删除一个对象
	 *
	 * @param obj
	 *            要删除的Mongo对象
	 */
	public void remove(Object obj) {
		this.mongoTemplate.remove(obj);
	}

	/**
	 * 加入对象
	 *
	 * @param obj
	 *            要加入的Mongo对象
	 */
	public void add(Object obj) {
		this.mongoTemplate.insert(obj);

	}

	/**
	 * 改动对象
	 *
	 * @param obj
	 *            要改动的Mongo对象
	 */
	public void saveOrUpdate(Object obj) {
		this.mongoTemplate.save(obj);
	}

	/**
	 * 查询并分页
	 *
	 * @param entityClass
	 *            对象类型
	 * @param query
	 *            查询条件
	 * @param page
	 *            分页
	 * @return
	 */
	public <T> List<T> findByQuery(Class<T> entityClass, Query query, Page page) {
		Long count = this.count(entityClass, query);
		page.setCount(count);
		int pageNumber = page.getCurrent();
		int pageSize = page.getPageCount();
		query.skip((pageNumber - 1) * pageSize).limit(pageSize);
		return this.mongoTemplate.find(query, entityClass);
	}

	/**
	 *
	 * @param entityClass
	 *            查询对象
	 * @param query
	 *            查询条件
	 * @return
	 */
	public <T> Long count(Class<T> entityClass, Query query) {
		return this.mongoTemplate.count(query, entityClass);
	}

	/**
	 * 批量插入
	 * @param entityClass 对象类
	 * @param collection  要插入的对象集合
	 */
	public <T> void addCollection(Class<T> entityClass, Collection<T> collection){
		this.mongoTemplate.insert(collection, entityClass);
	}

	public MongoTemplate getMongoTemplate() {
		return mongoTemplate;
	}

}

Page.java

package com.yiyuwanglu.basecore.page;

import java.io.IOException;
import java.io.Serializable;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.SimpleTagSupport;

public class Page extends SimpleTagSupport implements Serializable {

    private static final long serialVersionUID = 1L;//序列号
    private Integer current;//当前页码
    private Long count;//记录总数
    private Integer pageCount;//每页记录数
    private String path;//页面链接
    private String param;//传入的參数
    private boolean notQueryCount = false;//为false在翻页时查询记录总数。默认false

    public Page() {
        this.current = 1; // 默认第一页
        this.count = 0L; // 共多少条记录
        this.pageCount = 10; // 默认每页10条记录
    }

    @Override
    public void doTag() throws JspException, IOException {
        int pageSize = (int) (this.count / this.pageCount + (this.count % this.pageCount > 0 ? 1 : 0));//共多少页
        //显示当前页和总页数
        JspWriter out = this.getJspContext().getOut();//指定输入流，用于页面输出分页信息
        StringBuffer sb = new StringBuffer();//构建StringBuffer对象，用户拼接分页标签
        sb.append("<div class=\"page\">");
        sb.append("<ul>");
        //假设当前页在第一页，则首页和上一页没有超链接
        if (this.current == 1) {
            sb.append("<li class=\"disabled\">首页</li><li class=\"disabled\">上一页</li>");
        } else {
            sb.append("<li><a href=\"");
            sb.append(this.path);
            sb.append("?current=");
            sb.append(1);
            if (this.param != null && !"".equals(this.param)) {
                sb.append("&");
                sb.append(this.param);
            }
            sb.append("\">首页</a></li>");
            sb.append("<li><a href=\"");
            sb.append(this.path);
            sb.append("?

current=");
            sb.append(this.current - 1);
            if (this.param != null && !"".equals(this.param)) {
                sb.append("&");
                sb.append(this.param);
            }
            sb.append("\">上一页</a></li>");
        }
        //以下的代码显示页码。当前页在中间位置
        if (pageSize <= 10) {
            for (int i = 1; i <= pageSize; i++) {
                //假设页数小于等于10页,则所有显示
                if (i == this.current) {//假设页码等于当前页，则该页数没有超链接
                    sb.append("<li class=\"current\">");
                    sb.append(i);
                    sb.append("</li>");
                } else {//否则给出超链接
                    sb.append("<li><a href=\"");
                    sb.append(this.path);
                    sb.append("?

current=");
                    sb.append(i);
                    if (this.param != null && !"".equals(this.param)) {
                        sb.append("&");
                        sb.append(this.param);
                    }
                    sb.append("\">");
                    sb.append(i);
                    sb.append("</a></li>");
                }
            }
        } else {//假设大于10页。则从当前页为中心仅仅显示当中10页
            int index = 1;
            if (this.current > 4) {//而且假设当前页大于4页，从当前页前4页開始显示10个页数
                if (this.current + 4 >= pageSize) {//假设当前页+4 >= 总页数。最后10页所有显示出来
                    for (int j = pageSize - 9; j <= pageSize; j++) {
                        if (j == this.current) {//假设页码等于当前页。则该页数没有超链接
                            sb.append("<li class=\"current\">");
                            sb.append(j);
                            sb.append("</li>");
                        } else {//否则给定超链接
                            sb.append("<li><a href=\"");
                            sb.append(this.path);
                            sb.append("?current=");
                            sb.append(j);
                            if (this.param != null && !"".equals(this.param)) {
                                sb.append("&");
                                sb.append(this.param);
                            }
                            sb.append("\">");
                            sb.append(j);
                            sb.append("</a></li>");
                        }
                    }
                } else {
                    for (int j = this.current - 4; j <= pageSize; j++) {
                        if (j == this.current) {//假设页码等于当前页，则该页数没有超链接
                            sb.append("<li class=\"current\">");
                            sb.append(j);
                            sb.append("</li>");
                        } else {//否则给定超链接
                            sb.append("<li><a href=\"");
                            sb.append(this.path);
                            sb.append("?current=");
                            sb.append(j);
                            if (this.param != null && !"".equals(this.param)) {
                                sb.append("&");
                                sb.append(this.param);
                            }
                            sb.append("\">");
                            sb.append(j);
                            sb.append("</a></li>");
                        }
                        index++;
                        if (index > 10) {//假设循环到10次则退出循环
                            break;
                        }
                    }
                }
            } else {
                for (int i = 1; i <= pageSize; i++) {
                    //假设页数小于等于10页,则所有显示
                    if (i == this.current) {//假设页码等于当前页，则该页数没有超链接
                        sb.append("<li class=\"current\">");
                        sb.append(i);
                        sb.append("</li>");
                    } else {//否则给出超链接
                        sb.append("<li><a href=\"");
                        sb.append(this.path);
                        sb.append("?current=");
                        sb.append(i);
                        if (this.param != null && !"".equals(this.param)) {
                            sb.append("&");
                            sb.append(this.param);
                        }
                        sb.append("\">");
                        sb.append(i);
                        sb.append("</a></li>");
                    }
                    index++;
                    if (index > 10) {
                        break;
                    }
                }
            }
        }
        //假设当前页是最后一页，则末页和下一页没有超链接
        if (this.current.equals(pageSize) || this.count == 0) {
            sb.append("<li class=\"disabled\">下一页</li><li class=\"disabled\">末页</li>");
        } else {
            sb.append("<li><a href=\"");
            sb.append(this.path);
            sb.append("?current=");
            sb.append(this.current + 1);
            if (this.param != null && !"".equals(this.param)) {
                sb.append("&");
                sb.append(this.param);
            }
            sb.append("\">下一页</a></li>");
            sb.append("<li><a  href=\"");
            sb.append(this.path);
            sb.append("?current=");
            sb.append(pageSize);
            if (this.param != null && !"".equals(this.param)) {
                sb.append("&");
                sb.append(this.param);
            }
            sb.append("\">末页</a></li>");
        }
        sb.append("</ul>");
        sb.append("</div>");
        out.print(sb);
    }

    /**
     * 获取总记录条数
     *
     * @return
     */
    public Long getCount() {
        return this.count;
    }

    /**
     * 设置总记录条数
     *
     * @param count
     */
    public void setCount(Long count) {
        this.count = count;
    }

    /**
     * 获取当前第几页
     *
     * @return
     */
    public Integer getCurrent() {
        return this.current;
    }

    /**
     * 设置当前第几页
     *
     * @param current
     */
    public void setCurrent(Integer current) {
        try {
            if (current <= 0) {
                this.current = 1;
            } else {
                this.current = current;
            }
        } catch (Exception e) {
            this.current = 1;
        }
    }

    /**
     * 获取每页多少条记录
     *
     * @return
     */
    public Integer getPageCount() {
        return this.pageCount;
    }

    /**
     * 设置每页多少条记录
     *
     * @param pageCount
     */
    public void setPageCount(Integer pageCount) {
        this.pageCount = pageCount;
    }

    /**
     * 获取URI地址
     *
     * @return
     */
    public String getPath() {
        return path;
    }

    /**
     * 设置URI地址
     *
     * @param path
     */
    public void setPath(String path) {
        this.path = path;
    }

    /**
     * 获取參数值
     *
     * @return
     */
    public String getParam() {
        return param;
    }

    /**
     * 设置參数值
     *
     * @param param
     */
    public void setParam(String param) {
        String[] x = param.split("&");
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < x.length; i++) {
            String[] y = x[i].split("=");
            if (y.length > 1 && !"".equals(y[1].trim())) {
                sb.append(x[i]);
                sb.append("&");
            }
        }
        this.param = sb.toString().substring(0, sb.toString().lastIndexOf("&"));
    }

    /**
     * 获取总页数
     *
     * @return
     */
    public int getPages() {
        if (this.count % this.pageCount == 0) {
            return (int) (this.count / this.pageCount);
        } else {
            return (int) (this.count / this.pageCount + 1);
        }
    }

    /**
     * 是否为第一页
     *
     * @return
     */
    public boolean firstEnable() {
        return previoEnable();
    }

    /**
     * 是否为最后一页
     *
     * @return
     */
    public boolean lastEnable() {
        return nextEnable();
    }

    /**
     * 是否有下一页
     *
     * @return
     */
    public boolean nextEnable() {
        return this.current * this.pageCount < this.count;
    }

    /**
     * 是否有上一页
     *
     * @return
     */
    public boolean previoEnable() {
        return this.current > 1;
    }

    public boolean isNotQueryCount() {
        return this.notQueryCount;
    }

    public void setNotQueryCount(boolean notQueryCount) {
        this.notQueryCount = notQueryCount;
    }

    /**
     * 获取任一页第一条数据在数据集的位置.
     *
     * @param pageNo 从1開始的页号
     * @param pageSize 每页记录条数
     * @return 该页第一条数据
     */
    public int getStartOfPage(long pageNo, long pageSize) {
        return (int) ((pageNo - 1) * pageSize);
    }
}

User.java

package com.yiyuwanglu.test.entity;

import java.util.Date;

import org.springframework.data.mongodb.core.mapping.Document;

@Document
public class User {

	private String id;
	private String username;
	private int age;
	private Date createTime;

	public User() {

	}

	public User(String username, int age, Date createTime) {
		super();
		this.username = username;
		this.age = age;
		this.createTime = createTime;
	}

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public Date getCreateTime() {
		return createTime;
	}

	public void setCreateTime(Date createTime) {
		this.createTime = createTime;
	}

}

BaseTest.java

package basetest;

import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:config/spring/applicationContext.xml"})
public class BaseTest {

}

TestBaseDao.java

package basetest.dao;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.annotation.Resource;

import org.junit.Test;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;

import basetest.BaseTest;

import com.yiyuwanglu.basecore.dao.mongodb.MongoDBBaseDao;
import com.yiyuwanglu.test.entity.User;

public class TestBaseDao extends BaseTest {

	@Resource(name = "mongoDBBaseDao")
	MongoDBBaseDao mongoDBBaseDao;

	/**
	 * 插入单条数据。id自己定义
	 */
	public void testAdd() {
		User user = new User();
		Date creatTime = new Date();
		user.setCreateTime(creatTime);
		user.setAge(10);
		user.setUsername("福東江a");
		this.mongoDBBaseDao.add(user);
	}

	/**
	 * 插入100万条数据，id自己定义
	 */
	@Test
	public void testAddCollection() {
		List<User> userList = new ArrayList<User>();
		for (int j = 0; j < 10; j++) {
			for (int i = 0; i < 100000; i++) {
				User user = new User();
				Date creatTime = new Date();
				user.setCreateTime(creatTime);
				user.setAge(10);
				user.setUsername("册南");
				userList.add(user);
			}
		}
		this.mongoDBBaseDao.add(userList);
	}

	@Test
	public void testFindAll() {
		List<User> userList = this.mongoDBBaseDao.findAll(User.class);
		for (User user : userList) {
			System.out.println("id:" + user.getId() + " username:" + user.getUsername() + "   age:" + user.getAge());
		}
		System.out.println("获取所有的数据----------------------");
	}

	@Test
	public void testFindById() {
		User user = this.mongoDBBaseDao.findById(User.class, "1234567");
		System.out.println(user.getUsername());
		System.out.println("获取单个对象----------------------");
	}

	@Test
	public void testUpdate() {
		User user = this.mongoDBBaseDao.findById(User.class, "1234567");
		user.setUsername("反倒是淮");
		this.mongoDBBaseDao.saveOrUpdate(user);
		User newUser = this.mongoDBBaseDao.findById(User.class, "1234567");
		System.out.println(newUser.getUsername());
		System.out.println("改动数据成功");
		this.mongoDBBaseDao.saveOrUpdate(user);
	}

	@Test
	public void testRemove() {
		User user = this.mongoDBBaseDao.findById(User.class, "1234567");
		this.mongoDBBaseDao.remove(user);
		User oldUser = this.mongoDBBaseDao.findById(User.class, "1234567");
		if (oldUser == null) {
			System.out.println(oldUser == null);
			System.out.println("删除对象成功");
		}
		this.mongoDBBaseDao.add(user);
	}

	@Test
	public void testCount() {
		Query query = new Query();
		Criteria criteria = new Criteria();
		criteria.and("username").is("福東");
		query.addCriteria(criteria);
		long total = this.mongoDBBaseDao.count(User.class, query);
		System.out.println("用户总数:" + total);
	}

}

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