异常处理

2016-08-28 15:21:24   0  举报





仅支持查看

异常处理是编程中的一种重要机制，用于处理程序运行过程中可能出现的错误或异常情况。通过使用异常处理，程序员可以预测并处理潜在的错误，从而避免程序崩溃或产生不可预料的结果。异常处理通常包括try-except语句块，其中try块包含可能引发异常的代码，而except块则定义了当异常发生时要执行的操作。通过捕获和处理异常，程序可以继续执行后续的代码，或者采取适当的措施来恢复错误状态。异常处理还可以帮助程序员识别和修复代码中的错误，提高程序的健壮性和可靠性。总之，异常处理是编写可靠和健壮的程序的重要工具，它可以帮助程序员有效地处理各种错误情况，提高程序的质量和可维护性。

作者其他创作

大纲/内容

implement

UnsupportedOperationAdviceTrait

EmailAlreadyUsedException

StdScalarDeserializer.java

abstract TreeCodec

ProblemHandling

InvalidPasswordException

addressId[地址ID]userNameprovinceName.....consignmentMobile

MappingJackson2HttpMessageConverter

extend

ParameterNamesModule

Address

AbstractJackson2HttpMessageConverter

call

StdDeserializer.java

IOAdviceTrait

SimpleSerializers.java

DatabindContext

BadRequestAlertException

SPRING BOOT ResponseEntity

验证：addressId是否为空

Zalando Problem

ResponseEntity

private final Object status

Throwable

private StackTraceElement [] stackTrace

edit:address

JavaTimeModule

public JavaTimeMoudle()

HttpEntity

private final HttpHeaders headersprivate ffinal T body

ThrowableProblem

interface Serializable

Jdk8Module

CustomParameterizedException

SecurityAdviceTrait

InternalServerErrorException

RuntimeException

SerializerProvider

HttpAdviceTrait

abstract ObjectCodec

new: address

not null

Problem

spring json 处理

RoutingAdviceTrait

Module

public abstract String getModuleName();

GeneralAdviceTrait

Exceptional

interface Deserializers.java

ProblemModule

null

AddressFormData

JavaTimeModule 与 Jackson 联系

ProblemAdviceTrait

@ExceptionHandler

AbstractGenericHttpMessageConverter

interface BeanProperty

参数

AbstractHttpMessageConverter

Exception

EmailNotFoundException

JACKSON 实现流程

Simpleodule.java

protected SimpleDeserializers _deserializers = nullprotected SimpleSerializers _serializers = null

ServerHttpResponse

InstantDeserializer.java

abstract ConcreteBeanPropertyBase.java

abstract Module

AdviceTrait

process

BeanPropertyWriter.java

protected JsonSerializer _serializer

interface Versioned

abstract PropertyWriter.java

AbstractThrowableProblem

SimpleDeserializers.java

ProblemBuilder

public ThrowableProblem build()

系统异常处理

ThrowableAdviceTrait

HttpOutputMessage

OutputStream getBody()

DurationDeserializer.java

JSR310DateTimeDeserializerBase.java

ExceptionTranslator

SimpleModule

HttpMessageConverter

DefaultSerializerProvider

implemnet

...Deserializer.java

ObjectMapper

1 ObjectMapper registerModule(Module module) return ObjectMapper setAttr LinkedHashSet _registerModuleTypes2 WriteValueAsString(Object value) return String

Impl

LoginAlreadyUsedException

JsonDeserializer.java

ValidationAdviceTrait

DefaultProblem