SpringBoot入門系列：第四篇 redis
阿新 • • 發佈：2019-01-27
一，準備工作，建立spring-boot-sample-redis工程
1、http://start.spring.io/
A、Artifact中輸入spring-boot-sample-redis
B、勾選Web下的web
C、勾選NOSQL下的Redis
2、Eclips中匯入工程spring-boot-sample-redis
A、解壓快捷工程spring-boot-sample-redis到某資料夾
B、eclips中file->import->Import Existing Maven Projects-->Select Maven projects-->finish匯入工程
3、工程匯入之後，檔案結構如下圖
4、在包com.example下建立web資料夾
5、便於測試，引入spring-boot-sample-helloworld的HelloController及配置檔案logback.xml
HelloController程式碼為
logback.xml配置為package com.example.web; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class HelloController { protected static Logger logger=LoggerFactory.getLogger(HelloController.class); @RequestMapping("/") public String helloworld(){ logger.debug("訪問hello"); return "Hello world!"; } @RequestMapping("/hello/{name}") public String helloName(@PathVariable String name){ logger.debug("訪問helloName,Name={}",name); return "Hello "+name; } }
<configuration> <!-- %m輸出的資訊,%p日誌級別,%t執行緒名,%d日期,%c類的全名,,,, --> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%d %p (%file:%line\)- %m%n</pattern> <charset>GBK</charset> </encoder> </appender> <appender name="baselog" class="ch.qos.logback.core.rolling.RollingFileAppender"> <File>log/base.log</File> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>log/base.log.%d.i%</fileNamePattern> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <!-- or whenever the file size reaches 64 MB --> <maxFileSize>64 MB</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> <encoder> <pattern> %d %p (%file:%line\)- %m%n </pattern> <charset>UTF-8</charset> <!-- 此處設定字符集 --> </encoder> </appender> <root level="info"> <appender-ref ref="STDOUT" /> </root> <logger name="com.example" level="DEBUG"> <appender-ref ref="baselog" /> </logger> </configuration>
注：logback.xml檔案位於src/main/resources下
6、啟動工程，通過瀏覽器檢視正確性
http://localhost:8080/
http://localhost:8080/hello/上帝二，使用StringRedisTemplate
1、web檔案下建立class，類名為StringRedisController，編寫StringRedisController為
package com.example.web;
import javax.annotation.Resource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class StringRedisController {
protected static Logger logger=LoggerFactory.getLogger(StringRedisController.class);
@Autowired
StringRedisTemplate stringRedisTemplate;
@Resource(name="stringRedisTemplate")
ValueOperations<String,String> valOpsStr;
@RequestMapping("set")
public String setKeyAndValue(String key,String value){
logger.debug("訪問set:key={},value={}",key,value);
valOpsStr.set(key, value);
return "Set Ok";
}
@RequestMapping("get")
public String getKey(String key){
logger.debug("訪問get:key={}",key);
return valOpsStr.get(key);
}
}
#redis資料庫名稱 從0到15,預設為db0
spring.redis.database=1
#redis伺服器名稱
spring.redis.host=127.0.0.1
#redis伺服器密碼
spring.redis.password=123456
#redis伺服器連線埠號
spring.redis.port=6379
#redis連線池設定
spring.redis.pool.max-idle=8
spring.redis.pool.min-idle=0
spring.redis.pool.max-active=8
spring.redis.pool.max-wait=-1
#spring.redis.sentinel.master=
#spring.redis.sentinel.nodes=
spring.redis.timeout=600003、執行測試
在瀏覽器中先輸入
http://localhost:8080/set?key=lxh2&&value=1001
再輸入
http://localhost:8080/get?key=lxh2
再改改value的值試試
三、使用RedisTemplate
1、在包com.example下建立資料夾domain
2、在domain中建議類person
package com.example.domain;
import java.io.Serializable;
public class Person implements Serializable {
private static final long serialVersionUID = 1L;
private String id;
private String name;
private Integer age;
public Person() {
super();
}
public Person(String id, String name, Integer age) {
super();
this.id = id;
this.name = name;
this.age = age;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}3、在domain中建立類PersonDao
package com.example.domain;
import javax.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Repository;
@Repository
public class PersonDao {
@Autowired
RedisTemplate<Object,Object> redisTemplate;
@Resource(name="redisTemplate")
ValueOperations<Object,Object> valOps;
public void save(Person person){
valOps.set(person.getId(), person);
}
public Person getPerson(String id){
return (Person) valOps.get(id);
}
}4、在Web中建立類ObjectRedisController
package com.example.web;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.example.domain.Person;
import com.example.domain.PersonDao;
@RestController
public class ObjectRedisController {
protected static Logger logger=LoggerFactory.getLogger(ObjectRedisController.class);
@Autowired
PersonDao personDao;
@RequestMapping("/setPerson")
public void set(String id,String name,Integer age){
logger.debug("訪問setPerson:id={},name={},age={}",id,name,age);
Person person=new Person(id,name,age);
personDao.save(person);
}
@RequestMapping("/getPerson")
public Person getPerson(String id){
return personDao.getPerson(id);
}
}5、執行測試
http://localhost:8080/setPerson?id=2&&name=lxh2&&age=2
http://localhost:8080/getPerson?id=2