spring-boot of notes (continually updated)

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spring-boot of notes (continually updated)

Look at the recent spring-boot, in this summary of some commonly used direct use:

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@RequestHeader

• Obtaining request header parameter values;

@RequestMapping("/test/02")
	public Object test02(@RequestHeader(value = "accept") String acceptHeader) {
		//不区分大小写
		return "Request 'accept' header value : " + acceptHeader;
	}

@PathVariable

• Obtaining dynamic parameters of the interface;

@ResponseBody
@RequestMapping("/html/demo/{message}")
public String demMessage(@PathVaribale String message) {
	return "hello " + message;
}

@Bean

• Xml placed above corresponds to the process, rather than a class, generating means of a bean, and to manage spring;

@ConfigurationProperties

• Configuration information file properties, is injected into the java class @Bean used in combination;

@Primary

• When a plurality of data sources used to distinguish the primary data source;

@Qualifier

• When a plurality of the same type Bean using @Qualifier ( "name") to specify, commonly used with @Autowired descriptor may be defined by name in addition to implanting, may also be distinguished by a finer density.;

@MapperScan

• We mapper arrangement position to be scanned, may be added to the starting class spring-boot, the annotations may be added in the Mapper classes @Mapper above;

Use of the mapper class mabatis

@Seletc

• Is a query class notes, all queries are using this;

@Result

• Modified result set returned, the entity class attributes associated database fields and one correspondence, if the entity class and attribute database;

• @Seletc

• Is a query class notes, all queries are using this;

@Insert

• Into the database, it can also be directly into the entity class will automatically parse the attribute to a corresponding value;

@Update

• Responsible for changes, you can also pass an object;

@Delete

• Responsible for deleting;