@Data
@EqualsAndHashCode(callSuper = false)
#表名称 配置映射表
@TableName("t_cc_*")
public class Dao implements Serializable {
    /**实现序列化，实现serializable接口的作用是就是可以把对象存到字节流，然后可以恢复。网络传输需要用到，分布式系统尤其重要*/
    private static final long serialVersionUID = 1L;

    //设置主键自增
    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;
    private String tableName;
    private String tableColumn;

@Mapper
public interface Mapper extends BaseMapper<Dao> {
    //自定义sql
     @Select("SELECT t.id,t.Key,t.name,t.version,t.createTime,t.mark FROM t_apk t where Key=#{Key}")
    Dao selectByKey(@Param("Key") String Key);
}

@Service
public class ServiceImpl implements Service {

    private static AndroidPackageMapper mapper;

    @Autowired
    @SuppressWarnings("SpringJavaAutowiringInspection")
    public AndroidPackageServiceImpl(AndroidPackageMapper mapper){
        this.mapper=mapper;
    }

    @Override
    public ActionResult<Page> List(TO){
        EntityWrapper<DO> ew = new EntityWrapper<>();
        ew.where("key={0}",key)
        List<DO> DOList=mapper.selectPage(TO,ew);
        Page<AndroidPackageVO> page=new Page(TO.getCurrent(),TO.getSize());
        page.setRecords(DOList);
        page.setTotal(TO.getTotal());
        ActionResult<Page> ar=new ActionResult<>();
        ar.setResult(page);
        return ar;
    }

}

//开启事务
@Transactional
public interface AndroidPackageService {
    ActionResult<Page> List(TO)
}

@RestController
@RequestMapping("/api/Controller")
public class Controller {
    //参数层次较多时用@RequestBody注解映射
    @RequestMapping("/find")
    public ResponseEntity<ActionResult> findAPKList(@RequestBody PageTO pageTO){
        ActionResult<Page> result=Service.List(pageTO);
        return ResponseEntity.ok(result);
    }

    //参数层次单一时
        @RequestMapping("/delete")
    public ResponseEntity<ActionResult> delete(String key){
        ActionResult<String> result=Service.delete(key);
        return ResponseEntity.ok(result);
    }
}

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.49</version>
</dependency>

JSONObject.toJSONString(Javabean对象)

JSONObject.toJavaObject(JSON字符串,Javabean.class)

JSONObject.parseObject(JSON字符串)

JSONObject.parseObject(JSON字符串,Javabean.class)

ctrl+shift+t --> create new test
``` 

## 常使用注解
```java
类注解
@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureTestDatabase(replace = NONE) 对真实数据库运行测试
public class MultipartFileServiceImplTest {
服务注解
@Resource
private *Service service;
``` 

## 校验结果
[参考](https://blog.csdn.net/sz85850597/article/details/80427408)
Assert.assertThat();

想判断某个字符串 s 是否含有子字符串 "developer" 或 "Works" 中间的一个
assertThat(s, anyOf(containsString("developer"), containsString("Works"))); 

字符相关匹配符
/**equalTo匹配符断言被测的testedValue等于expectedValue，
* equalTo可以断言数值之间，字符串之间和对象之间是否相等，相当于Object的equals方法
*/
assertThat(testedValue, equalTo(expectedValue));
/**equalToIgnoringCase匹配符断言被测的字符串testedString
*在忽略大小写的情况下等于expectedString
*/
assertThat(testedString, equalToIgnoringCase(expectedString));
/**equalToIgnoringWhiteSpace匹配符断言被测的字符串testedString
*在忽略头尾的任意个空格的情况下等于expectedString，
*注意：字符串中的空格不能被忽略
*/
assertThat(testedString, equalToIgnoringWhiteSpace(expectedString);
/**containsString匹配符断言被测的字符串testedString包含子字符串subString**/
assertThat(testedString, containsString(subString) );
/**endsWith匹配符断言被测的字符串testedString以子字符串suffix结尾*/
assertThat(testedString, endsWith(suffix));
/**startsWith匹配符断言被测的字符串testedString以子字符串prefix开始*/
assertThat(testedString, startsWith(prefix));

一般匹配符
/**nullValue()匹配符断言被测object的值为null*/
assertThat(object,nullValue());
/**notNullValue()匹配符断言被测object的值不为null*/
assertThat(object,notNullValue());
/**is匹配符断言被测的object等于后面给出匹配表达式*/
assertThat(testedString, is(equalTo(expectedValue)));
/**is匹配符简写应用之一，is(equalTo(x))的简写，断言testedValue等于expectedValue*/
assertThat(testedValue, is(expectedValue));
/**is匹配符简写应用之二，is(instanceOf(SomeClass.class))的简写，
*断言testedObject为Cheddar的实例
*/
assertThat(testedObject, is(Cheddar.class));
/**not匹配符和is匹配符正好相反，断言被测的object不等于后面给出的object*/
assertThat(testedString, not(expectedString));
/**allOf匹配符断言符合所有条件，相当于“与”（&&）*/
assertThat(testedNumber, allOf( greaterThan(8), lessThan(16) ) );
/**anyOf匹配符断言符合条件之一，相当于“或”（||）*/
assertThat(testedNumber, anyOf( greaterThan(16), lessThan(8) ) );
数值相关匹配符
/**closeTo匹配符断言被测的浮点型数testedDouble在20.0¡À0.5范围之内*/
assertThat(testedDouble, closeTo( 20.0, 0.5 ));
/**greaterThan匹配符断言被测的数值testedNumber大于16.0*/
assertThat(testedNumber, greaterThan(16.0));
/** lessThan匹配符断言被测的数值testedNumber小于16.0*/
assertThat(testedNumber, lessThan (16.0));
/** greaterThanOrEqualTo匹配符断言被测的数值testedNumber大于等于16.0*/
assertThat(testedNumber, greaterThanOrEqualTo (16.0));
/** lessThanOrEqualTo匹配符断言被测的testedNumber小于等于16.0*/
assertThat(testedNumber, lessThanOrEqualTo (16.0));
集合相关匹配符
/**hasEntry匹配符断言被测的Map对象mapObject含有一个键值为"key"对应元素值为"value"的Entry项*/
assertThat(mapObject, hasEntry("key", "value" ) );
/**hasItem匹配符表明被测的迭代对象iterableObject含有元素element项则测试通过*/
assertThat(iterableObject, hasItem (element));
/** hasKey匹配符断言被测的Map对象mapObject含有键值“key”*/
assertThat(mapObject, hasKey ("key"));
/** hasValue匹配符断言被测的Map对象mapObject含有元素值value*/
assertThat(mapObject, hasValue(value));

## 使用Mockito来录制结果
```java
 //Let's import Mockito statically so that the code looks clearer
 import static org.mockito.Mockito.*;

 //mock creation
 List mockedList = mock(List.class);

 //using mock object
 mockedList.add("one");
 mockedList.clear();

 //verification
 verify(mockedList).add("one");
 verify(mockedList).clear();

 when(mockedList.get(0)).thenReturn("first");
 when(mockedList.get(1)).thenThrow(new RuntimeException());

#根据属性生成get和set方法
@Data

Iterator<String> iterator = list.iterator();
while (iterator.hasNext()) {
String item = iterator.next();
if (删除元素的条件) {
iterator.remove();
}
}

List<String> list = new ArrayList<String>();
list.add("1");
list.add("2");
for (String item : list) {
if ("1".equals(item)) {
list.remove(item);
}
}

button.addActionListener(() -> { 
    System.out.println("Action detected");
});

Runnable runnable1=new Runnable(){
    @Override
    public void run(){
        System.out.println("Running without Lambda");
    }
};

(lambda(x)(+x1))

\x->x+1