Parameter (Apache Dubbo 3.0.0 API)

@Documented
@Retention(RUNTIME)
@Target(METHOD)
public @interface Parameter

Parameter

可选元素概要

可选元素
修饰符和类型	可选元素	说明
`boolean`	`append`	If append=true, append new value to exist value instead of overriding it.
`boolean`	`attribute`	If attribute=false, ignore it when processing refresh()/getMetadata()/equals()/toString()
`boolean`	`escaped`	if escaped=true, escape it when append parameters to url
`boolean`	`excluded`	If excluded=true, ignore it when append parameters to url
`String`	`key`	Specify the parameter key when append parameters to url
`boolean`	`required`	If required=true, the value must not be empty when append to url

- 元素详细资料
  - key
```
String key
```
    Specify the parameter key when append parameters to url
    
    默认值:
    
    ""
- - required
```
boolean required
```
    If required=true, the value must not be empty when append to url
    
    默认值:
    
    false
- - excluded
```
boolean excluded
```
    If excluded=true, ignore it when append parameters to url
    
    默认值:
    
    false
- - escaped
```
boolean escaped
```
    if escaped=true, escape it when append parameters to url
    
    默认值:
    
    false
- - attribute
```
boolean attribute
```
    If attribute=false, ignore it when processing refresh()/getMetadata()/equals()/toString()
    
    默认值:
    
    true
- - append
```
boolean append
```
    If append=true, append new value to exist value instead of overriding it.
    
    默认值:
    
    false