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springboot 详解 （一） helloworld 下载demo
springboot 详解 (四）redis & filter 下载demo
springboot 详解 (五）interceptor 下载demo
springboot 详解 (六）servlet & scheduled & listener 下载demo
springboot 详解（七） dubbox & zookeeper 下载（productor） 下载（constumser）
springboot 详解（八） springboot & springcloud
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package com.curiousby.cn.redis;
import java.util.List;
public interface IRedisService {
public boolean set(String key, String value);
public boolean set(String key, String value,long expire);
public String get(String key);
public boolean expire(String key,long expire);
public <T> boolean setList(String key ,List<T> list);
public <T> List<T> getList(String key,Class<T> clz);
public long lpush(String key,Object obj);
public long rpush(String key,Object obj);
public String lpop(String key);
}
package com.curiousby.cn.redis;
import org.apache.log4j.Logger;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import redis.clients.jedis.JedisPoolConfig;
/**
*
* @author vic
* @desc redis config bean
*
*/
@Configuration
@EnableAutoConfiguration
public class RedisConfig {
private static Logger logger = Logger.getLogger(RedisConfig.class);
@Bean
@ConfigurationProperties(prefix="spring.redis")
public JedisPoolConfig getRedisConfig(){
JedisPoolConfig config = new JedisPoolConfig();
return config;
}
@Bean
@ConfigurationProperties(prefix="spring.redis")
public JedisConnectionFactory getConnectionFactory(){
JedisConnectionFactory factory = new JedisConnectionFactory();
JedisPoolConfig config = getRedisConfig();
factory.setPoolConfig(config);
logger.info("JedisConnectionFactory bean init success.");
return factory;
}
@Bean
public RedisTemplate<?, ?> getRedisTemplate(){
RedisTemplate<?,?> template = new StringRedisTemplate(getConnectionFactory());
return template;
}
}
package com.curiousby.cn.redis;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.stereotype.Service;
import com.curiousby.cn.util.JSONUtil;
/**
*
* @author
* @desc resdis service
*
*/
@Service(value="redisService")
public class RedisServiceImpl implements IRedisService{
@Autowired
private RedisTemplate<String, String> redisTemplate;
@Override
public boolean set(final String key, final String value) {
boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
@Override
public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
connection.set(serializer.serialize(key), serializer.serialize(value));
return true;
}
});
return result;
}
@Override
public boolean set(final String key, final String value,final long expire) {
boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
@Override
public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
connection.set(serializer.serialize(key), serializer.serialize(value));
redisTemplate.expire(key, expire, TimeUnit.SECONDS);
return true;
}
});
return result;
}
public String get(final String key){
String result = redisTemplate.execute(new RedisCallback<String>() {
@Override
public String doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
byte[] value = connection.get(serializer.serialize(key));
return serializer.deserialize(value);
}
});
return result;
}
@Override
public boolean expire(final String key, long expire) {
return redisTemplate.expire(key, expire, TimeUnit.SECONDS);
}
@Override
public <T> boolean setList(String key, List<T> list) {
String value = JSONUtil.toJson(list);
return set(key,value);
}
@Override
public <T> List<T> getList(String key,Class<T> clz) {
String json = get(key);
if(json!=null){
List<T> list = JSONUtil.toList(json, clz);
return list;
}
return null;
}
@Override
public long lpush(final String key, Object obj) {
final String value = JSONUtil.toJson(obj);
long result = redisTemplate.execute(new RedisCallback<Long>() {
@Override
public Long doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
long count = connection.lPush(serializer.serialize(key), serializer.serialize(value));
return count;
}
});
return result;
}
@Override
public long rpush(final String key, Object obj) {
final String value = JSONUtil.toJson(obj);
long result = redisTemplate.execute(new RedisCallback<Long>() {
@Override
public Long doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
long count = connection.rPush(serializer.serialize(key), serializer.serialize(value));
return count;
}
});
return result;
}
@Override
public String lpop(final String key) {
String result = redisTemplate.execute(new RedisCallback<String>() {
@Override
public String doInRedis(RedisConnection connection) throws DataAccessException {
RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
byte[] res = connection.lPop(serializer.serialize(key));
return serializer.deserialize(res);
}
});
return result;
}
}
spring.redis.database=0 spring.redis.host=localhost spring.redis.port=6379 spring.redis.password= spring.redis.pool.max-active=8 spring.redis.pool.max-wait=-1 spring.redis.pool.max-idle=8 spring.redis.pool.min-idle=0 spring.redis.timeout=0
package com.curiousby.cn.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import com.curiousby.cn.redis.IRedisService;
@WebFilter(filterName="ipFilter",urlPatterns="/*")
public class IPFilter implements Filter {
protected static final Logger logger = LoggerFactory.getLogger(IPFilter.class);
public final static int IPMAXCOUNTPERMINUTES = 5;
public final static long IPLIMITSENCONDS = 300;
public final static long IPCOUNTSENCONDS = 60;
// @Resource
IRedisService iredisService;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
WebApplicationContext wac=WebApplicationContextUtils.getWebApplicationContext(req.getSession().getServletContext());
iredisService = (IRedisService) wac.getBean("redisService");
String ip = getIpAddr(req);
String ipLimit = iredisService.get(ip+"_limit");
if (ipLimit !=null && !"".equals(ipLimit)) {
req.getRequestDispatcher("/web/static/forward").forward(req, response);
return;
}else{
String ipConut = iredisService.get(ip+"_count");
if (ipConut !=null && !"".equals(ipConut)){
int ipLCount = Integer.parseInt(ipConut);
if(ipLCount >= IPMAXCOUNTPERMINUTES){
iredisService.set(ip+"_limit", ipLCount+"", IPLIMITSENCONDS);
iredisService.set(ip+"_count", "0", IPCOUNTSENCONDS);
req.getRequestDispatcher("/web/static/forward").forward(req, response);
return;
}else{
ipLCount += 1;
iredisService.set(ip+"_count", ipLCount+"", IPCOUNTSENCONDS);
}
}else{
iredisService.set(ip+"_count", "1", IPCOUNTSENCONDS);
}
}
chain.doFilter(req, response);
}
@Override
public void destroy() {
}
public String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader("x-forwarded-for");
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
}
package com.curiousby.cn.util;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.reflect.TypeToken;
/**
*
* @author vic
* @desc json util
*/
public class JSONUtil {
private static Gson gson = null;
static{
gson = new Gson();//todo yyyy-MM-dd HH:mm:ss
}
public static synchronized Gson newInstance(){
if(gson == null){
gson = new Gson();
}
return gson;
}
public static String toJson(Object obj){
return gson.toJson(obj);
}
public static <T> T toBean(String json,Class<T> clz){
return gson.fromJson(json, clz);
}
public static <T> Map<String, T> toMap(String json,Class<T> clz){
Map<String, JsonObject> map = gson.fromJson(json, new TypeToken<Map<String,JsonObject>>(){}.getType());
Map<String, T> result = new HashMap<>();
for(String key:map.keySet()){
result.put(key,gson.fromJson(map.get(key),clz) );
}
return result;
}
public static Map<String, Object> toMap(String json){
Map<String, Object> map = gson.fromJson(json, new TypeToken<Map<String,Object>>(){}.getType());
return map;
}
public static <T> List<T> toList(String json,Class<T> clz){
JsonArray array = new JsonParser().parse(json).getAsJsonArray();
List<T> list = new ArrayList<>();
for(final JsonElement elem : array){
list.add(gson.fromJson(elem, clz));
}
return list;
}
public static void main(String[] args) {
}
}
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-redis</artifactId>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
