开发常用代码集2

一、进入服务管理界面

cmd命令窗口输入services.msc 进入服务管理界面

二、进入控制面板

cmd命令窗口输入control 四、进入控制面板

三、注解

@ApiModelProperty("ID")
@TableId(type = IdType.ASSIGN_ID)
private Long id;

@Length(max = 50, message = "标本号最多50个字符")
@NotBlank(message = "标本号不能为空")
@ApiModelProperty("标本号")
private String specimenCode;

四、ID获取对象

@Override
public Assay findById(Long assayId) {
   return Optional.ofNullable(assayMapper.selectById(assayId)).orElseThrow(() -> new ServiceException("检验记录不存在"));
}

五、取对象字段、差集

List<String> hadDataBottleCodes = dbList.stream().map(NodeBloodCultureDTO::getBottleCode).collect(Collectors.toList());

//差集：allBottleCodes - hadDataBottleCodes
List<String> noDataBottleCodes = allBottleCodes.stream().filter(item -> !hadDataBottleCodes.contains(item)).collect(Collectors.toList());

六、异步

CompletableFuture.supplyAsync(() -> {
     initOldDataService.initTrans();
     return true;
 }, GlobalThreadPool.getExecutor());

CompletableFuture.supplyAsync(() -> doUpdateLog(bottleCodeList), GlobalThreadPool.getExecutor());

七、修改

@Override
public int update(AssayUpdateVO updateVO) {
    LambdaUpdateWrapper<Assay> updateWrapper = new LambdaUpdateWrapper<>();
    updateWrapper.eq(Assay::getId, updateVO.getId());

    updateWrapper.set(updateVO.getDoctorId() != null, Assay::getDoctorId, updateVO.getDoctorId());
    updateWrapper.set(StringUtils.isNotEmpty(updateVO.getDoctorName()), Assay::getDoctorName, updateVO.getDoctorName());
    return mapper.update(new Assay(), updateWrapper);
}

八、JSON与字符串互转

FlowModel flowModel = JSONObject.parseObject(flowModelStr, FlowModel.class);

String newFowModelStr = JSON.toJSONString(flowModel);

九、字符串与List互转

字符串转List

String strs = "a,b,c,d";
List<String> strList = Convert.toList(String.class,strs);

List转字符串

public static void main(String[] args) {
       List<String> strList = new ArrayList<String>();
       strList.add("a");
       strList.add("b");
       String strs = StringUtils.join(strList,",");
       //a,b
       System.out.println(strs);
   }

十、in

@Select({"<script> SELECT * FROM ei_node_instance WHERE flow_instance_id=#{flowInstanceId} and status= 2 and node_key in <foreach collection='nodeKeyList' item='nodeKey' open='(' separator=',' close=')'> #{nodeKey} </foreach> ORDER BY node_key </script>"})
List<NodeInstancePO> listTodo(@Param("flowInstanceId") String flowInstanceId, @Param("nodeKeyList") List<String> nodeKeyList);

十一、JS解构

11.1 数组解构

let [a, b, c] = [1, 2, 3];

等同于:

let a = 1;
let b = 2;
let c = 3;

11.2 对象解构

let { foo, bar } = { foo: 'aaa', bar: 'bbb' };
foo // "aaa"
bar // "bbb"

11.3 对象解构改字段名

let obj = { first: 'hello', last: 'world' };
let { first: f, last: l } = obj;
f // 'hello'
l // 'world'

11.4 对象解构获取函数

// 例一
let { log, sin, cos } = Math;

// 例二
const { log } = console;
log('hello') // hello

十二、JS深拷贝

let rowValue = JSON.parse(JSON.stringify(row))