Java Code Examples for cn.hutool.core.collection.CollUtil#newArrayList()

The following examples show how to use cn.hutool.core.collection.CollUtil#newArrayList() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: HutoolController.java    From mall-learning with Apache License 2.0 6 votes vote down vote up 
@ApiOperation("CollUtil使用：集合工具类")
@GetMapping("/collUtil")
public CommonResult collUtil() {
    //数组转换为列表
    String[] array = new String[]{"a", "b", "c", "d", "e"};
    List<String> list = CollUtil.newArrayList(array);
    //join：数组转字符串时添加连接符号
    String joinStr = CollUtil.join(list, ",");
    LOGGER.info("collUtil join:{}", joinStr);
    //将以连接符号分隔的字符串再转换为列表
    List<String> splitList = StrUtil.split(joinStr, ',');
    LOGGER.info("collUtil split:{}", splitList);
    //创建新的Map、Set、List
    HashMap<Object, Object> newMap = CollUtil.newHashMap();
    HashSet<Object> newHashSet = CollUtil.newHashSet();
    ArrayList<Object> newList = CollUtil.newArrayList();
    //判断列表是否为空
    CollUtil.isEmpty(list);
    CollUtil.isNotEmpty(list);
    return CommonResult.success(null, "操作成功");
}
Example 2
Source File: BaseDao.java    From spring-boot-demo with MIT License 6 votes vote down vote up 
/**
 * 根据对象查询
 *
 * @param t 查询条件
 * @return 对象列表
 */
public List<T> findByExample(T t) {
	String tableName = getTableName(t);
	List<Field> filterField = getField(t, true);
	List<String> columnList = getColumns(filterField);

	List<String> columns = columnList.stream().map(s -> " and " + s + " = ? ").collect(Collectors.toList());

	String where = StrUtil.join(" ", columns);
	// 构造值
	Object[] values = filterField.stream().map(field -> ReflectUtil.getFieldValue(t, field)).toArray();

	String sql = StrUtil.format("SELECT * FROM {table} where 1=1 {where}", Dict.create().set("table", tableName).set("where", StrUtil.isBlank(where) ? "" : where));
	log.debug("【执行SQL】SQL：{}", sql);
	log.debug("【执行SQL】参数：{}", JSONUtil.toJsonStr(values));
	List<Map<String, Object>> maps = jdbcTemplate.queryForList(sql, values);
	List<T> ret = CollUtil.newArrayList();
	maps.forEach(map -> ret.add(BeanUtil.fillBeanWithMap(map, ReflectUtil.newInstance(clazz), true, false)));
	return ret;
}
Example 3
Source File: BaseDao.java    From spring-boot-demo with MIT License 6 votes vote down vote up 
/**
 * 获取列
 *
 * @param fieldList 字段列表
 * @return 列信息列表
 */
private List<String> getColumns(List<Field> fieldList) {
	// 构造列
	List<String> columnList = CollUtil.newArrayList();
	for (Field field : fieldList) {
		Column columnAnnotation = field.getAnnotation(Column.class);
		String columnName;
		if (ObjectUtil.isNotNull(columnAnnotation)) {
			columnName = columnAnnotation.name();
		} else {
			columnName = field.getName();
		}
		columnList.add(StrUtil.format("`{}`", columnName));
	}
	return columnList;
}
Example 4
Source File: BaseDao.java    From spring-boot-demo with MIT License 6 votes vote down vote up 
/**
 * 根据对象查询
 *
 * @param t 查询条件
 * @return 对象列表
 */
public List<T> findByExample(T t) {
	String tableName = getTableName(t);
	List<Field> filterField = getField(t, true);
	List<String> columnList = getColumns(filterField);

	List<String> columns = columnList.stream().map(s -> " and " + s + " = ? ").collect(Collectors.toList());

	String where = StrUtil.join(" ", columns);
	// 构造值
	Object[] values = filterField.stream().map(field -> ReflectUtil.getFieldValue(t, field)).toArray();

	String sql = StrUtil.format("SELECT * FROM {table} where 1=1 {where}", Dict.create().set("table", tableName).set("where", StrUtil.isBlank(where) ? "" : where));
	log.debug("【执行SQL】SQL：{}", sql);
	log.debug("【执行SQL】参数：{}", JSONUtil.toJsonStr(values));
	List<Map<String, Object>> maps = jdbcTemplate.queryForList(sql, values);
	List<T> ret = CollUtil.newArrayList();
	maps.forEach(map -> ret.add(BeanUtil.fillBeanWithMap(map, ReflectUtil.newInstance(clazz), true, false)));
	return ret;
}
Example 5
Source File: BaseDao.java    From spring-boot-demo with MIT License 6 votes vote down vote up 
/**
 * 获取列
 *
 * @param fieldList 字段列表
 * @return 列信息列表
 */
private List<String> getColumns(List<Field> fieldList) {
	// 构造列
	List<String> columnList = CollUtil.newArrayList();
	for (Field field : fieldList) {
		Column columnAnnotation = field.getAnnotation(Column.class);
		String columnName;
		if (ObjectUtil.isNotNull(columnAnnotation)) {
			columnName = columnAnnotation.name();
		} else {
			columnName = field.getName();
		}
		columnList.add(StrUtil.format("`{}`", columnName));
	}
	return columnList;
}
Example 6
Source File: BaseDao.java    From spring-boot-demo with MIT License 6 votes vote down vote up 
/**
 * 根据对象查询
 *
 * @param t 查询条件
 * @return 对象列表
 */
public List<T> findByExample(T t) {
	String tableName = getTableName(t);
	List<Field> filterField = getField(t, true);
	List<String> columnList = getColumns(filterField);

	List<String> columns = columnList.stream().map(s -> " and " + s + " = ? ").collect(Collectors.toList());

	String where = StrUtil.join(" ", columns);
	// 构造值
	Object[] values = filterField.stream().map(field -> ReflectUtil.getFieldValue(t, field)).toArray();

	String sql = StrUtil.format("SELECT * FROM {table} where 1=1 {where}", Dict.create().set("table", tableName).set("where", StrUtil.isBlank(where) ? "" : where));
	log.debug("【执行SQL】SQL：{}", sql);
	log.debug("【执行SQL】参数：{}", JSONUtil.toJsonStr(values));
	List<Map<String, Object>> maps = jdbcTemplate.queryForList(sql, values);
	List<T> ret = CollUtil.newArrayList();
	maps.forEach(map -> ret.add(BeanUtil.fillBeanWithMap(map, ReflectUtil.newInstance(clazz), true, false)));
	return ret;
}
Example 7
Source File: BaseDao.java    From spring-boot-demo with MIT License 6 votes vote down vote up 
/**
 * 获取列
 *
 * @param fieldList 字段列表
 * @return 列信息列表
 */
private List<String> getColumns(List<Field> fieldList) {
	// 构造列
	List<String> columnList = CollUtil.newArrayList();
	for (Field field : fieldList) {
		Column columnAnnotation = field.getAnnotation(Column.class);
		String columnName;
		if (ObjectUtil.isNotNull(columnAnnotation)) {
			columnName = columnAnnotation.name();
		} else {
			columnName = field.getName();
		}
		columnList.add(StrUtil.format("`{}`", columnName));
	}
	return columnList;
}
Example 8
Source File: ResourcesUtils.java    From simple-robot-core with Apache License 2.0 5 votes vote down vote up 
/**
 * 获取资源列表
 * @param path   path资源路径
 * @param loader 类加载器，如果为null则获取当前线程的类加载器
 */
public static List<URL> getResources(String path, ClassLoader loader){
    final Enumeration<URL> resources;
    if(loader == null){
        loader = ClassLoaderUtil.getClassLoader();
    }
    try {
        resources = loader.getResources(path);
    } catch (IOException e) {
        throw new IORuntimeException(e);
    }
    return CollUtil.newArrayList(resources);
}
Example 9
Source File: DbTemplate.java    From spring-boot-demo with MIT License 2 votes vote down vote up 
/**
 * 获取所有SessionId
 *
 * @return SessionId列表
 */
public List<UUID> findAll() {
    return CollUtil.newArrayList(DB.values());
}
Example 10
Source File: DbTemplate.java    From spring-boot-demo with MIT License 2 votes vote down vote up 
/**
 * 获取所有SessionId
 *
 * @return SessionId列表
 */
public List<UUID> findAll() {
    return CollUtil.newArrayList(DB.values());
}
Example 11
Source File: DbTemplate.java    From spring-boot-demo with MIT License 2 votes vote down vote up 
/**
 * 获取所有SessionId
 *
 * @return SessionId列表
 */
public List<UUID> findAll() {
    return CollUtil.newArrayList(DB.values());
}