标签：ext enc resultmap static image oid ibatis The 总数
测试结果
数据库表
ConfigPool.java
package com.alphajuns.ssm.util;
import com.alphajuns.ssm.pojo.Config;
import com.alphajuns.ssm.service.ConfigService;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class ConfigPool {
/**
* 参数表的缓存map
*/
private static AbstractTimeCachedObject cachedConfigPool = new AbstractTimeCachedObject(
AbstractTimeCachedObject.CONFIG_CACHEDTIME) {
@Override
public Object refreshCachedObject(Object params) {
return new HashMap<String, Config>();
}
};
/**
*
* <p>
* Description: 得到缓存中的对象
* </p>
*
* @param enforce boolean
* @return Map Map
*/
@SuppressWarnings("unchecked")
public static Map<String, Config> getCachedConfigPool(boolean enforce) {
return (Map<String, Config>) cachedConfigPool.getCachedObject(null, enforce);
}
/**
*
* <p>
* Description: 得到参数
* </p>
*
* @param configKey String
* @return Config Config
*/
public static Config getGroupConfig(String group,String configKey) {
Map<String, Config> configMap;
configMap = getCachedConfigPool(false);
System.out.println("获取到的map:" + System.identityHashCode(configMap));
Config config;
config = configMap.get(group+"."+configKey);
if (EmptyUtil.isEmpty(config)) {
ConfigService configService = null;
configService = (ConfigService) com.alphajuns.ssm.util.SpringContextUtil.getBean("configServiceImpl");
Map<String,String> map =new HashMap<String,String>();
map.put("configGroup", group);
map.put("configKey", configKey);
config = configService.queryConfigByGroupKey(map);
configMap.put(group+"."+configKey, config);
}
return config;
}
/**
* 通过key得到值
* @param configKey
* @return
*/
public static String getConfigValue(String configKey){
String value = "";
Config config = getGroupConfig(null,configKey);
if(config!=null){
value = config.getConfigValue();
}
return value;
}
/**
* 通过group,key得到值
* @param configKey
* @return
*/
public static String getConfigValue(String group, String configKey){
String value = "";
Config config = getGroupConfig(group,configKey);
if(config!=null){
value = config.getConfigValue();
}
return value;
}
public static List<Map<String,?>> getConfigsByGroup(String group){
ConfigService configService = null;
configService = (ConfigService) com.alphajuns.ssm.util.SpringContextUtil.getBean("configServiceImpl");
Map<String,Object> queryConfigMap = new HashMap<String,Object>();
queryConfigMap.put("configGroup", group);
List<Map<String,?>> configList = configService.queryConfigListByGroup(queryConfigMap);
return configList;
}
}
AbstractTimeCachedObject.java
package com.alphajuns.ssm.util;
public abstract class AbstractTimeCachedObject {
/**
*
*/
private static final long MILLS_PER_MINTUE = 60 * 1000;
/**
* CONFIG_CACHEDTIME
*/
public static final int CONFIG_CACHEDTIME = 30;
/**
*
*/
protected long cachedMinutes = 5L;
/**
*
*/
private long expiredTimeSlot = 0;
/**
*
*/
private Object cachedObject = null;
/**
* <p>Description: AbstractTimeCachedObject</p>
*/
public AbstractTimeCachedObject() {
}
/**
* <p>Description: AbstractTimeCachedObject</p>
* @param minutes minutes
*/
public AbstractTimeCachedObject(int minutes) {
this.cachedMinutes = minutes;
}
public final boolean isExpired() {
return (System.currentTimeMillis() > this.expiredTimeSlot);
}
/**
* <p>Description: getCachedObject</p>
* @param params params
* @param enforce enforce
* @return Object
*/
public final synchronized Object getCachedObject(Object params, boolean enforce) {
if (enforce || isExpired()) {
setCachedObject(refreshCachedObject(params));
}
return this.cachedObject;
}
/**
* <p>Description: getCachedObject</p>
* @param params params
* @return Object
*/
public final Object getCachedObject(Object params) {
return getCachedObject(params, false);
}
/**
* <p>Description: setCachedObject</p>
* @param cachedObject cachedObject
*/
public final void setCachedObject(Object cachedObject) {
this.cachedObject = cachedObject;
this.expiredTimeSlot = System.currentTimeMillis() + this.cachedMinutes * MILLS_PER_MINTUE;
}
/**
* <p>Description: refreshCachedObject</p>
* @param params params
* @return Object
*/
public abstract Object refreshCachedObject(Object params);
}
Config.java
package com.alphajuns.ssm.pojo;
public class Config {
private String configGroup;
/**
* 参数键
*/
private String configKey;
/**
* 参数值
*/
private String configValue;
/**
* 描述
*/
private String description;
/**
*
* <p>
* 总数: TODO
* </p>
*
*/
private int total;
public String getConfigKey() {
return this.configKey;
}
public void setConfigKey(String configKey) {
this.configKey = configKey;
}
public String getConfigValue() {
return this.configValue;
}
public void setConfigValue(String configValue) {
this.configValue = configValue;
}
public String getDescription() {
return this.description;
}
public void setDescription(String description) {
this.description = description;
}
public int getTotal() {
return this.total;
}
public void setTotal(int total) {
this.total = total;
}
public String getConfigGroup() {
return configGroup;
}
public void setConfigGroup(String configGroup) {
this.configGroup = configGroup;
}
public String toString(){
return "group:"+this.configGroup+",key:"+this.configKey+",value:"+this.configValue;
}
}
ConfigService.java
package com.alphajuns.ssm.service;
import com.alphajuns.ssm.pojo.Config;
import java.util.List;
import java.util.Map;
public interface ConfigService {
/**
* search key
* @param configKey
* @return
*/
public Config queryConfigByKey(String configKey);
/**
* 通过group 和key搜索
* @param queryConfigMap
* @return
*/
public Config queryConfigByGroupKey(Map<String,?> queryConfigMap);
/**
* queryConfigListByGroup
* @param queryConfigMap
* @return
*/
public List<Map<String,?>> queryConfigListByGroup(Map<String,?> queryConfigMap);
/**
*
* @Description 查询二期
* @author fanj
* @date 2019年11月20日
* @param queryConfigMap
* @return
*/
public List<Map<String,?>> queryTpmeConfigListByGroup(Map<String,?> queryConfigMap);
}
ConfigServiceImpl.java
package com.alphajuns.ssm.service.impl;
import com.alphajuns.ssm.mybatis.ConfigMapper;
import com.alphajuns.ssm.pojo.Config;
import com.alphajuns.ssm.service.ConfigService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Map;
@Service
public class ConfigServiceImpl implements ConfigService {
@Autowired
private ConfigMapper configMapper;
@Override
public Config queryConfigByKey(String configKey) {
// TODO Auto-generated method stub
return configMapper.queryConfigByKey(configKey);
}
public Config queryConfigByGroupKey(Map<String,?> queryConfigMap){
return configMapper.queryConfigByGroupKey(queryConfigMap);
}
public List<Map<String,?>> queryConfigListByGroup(Map<String,?> queryConfigMap){
return configMapper.queryConfigListByGroup(queryConfigMap);
}
@Override
public List<Map<String, ?>> queryTpmeConfigListByGroup(Map<String, ?> queryConfigMap) {
return configMapper.queryTpmeConfigListByGroup(queryConfigMap);
}
}
ConfigMapper.java
package com.alphajuns.ssm.mybatis;
import com.alphajuns.ssm.pojo.Config;
import org.apache.ibatis.annotations.Param;
import java.util.List;
import java.util.Map;
public interface ConfigMapper {
public abstract Config queryConfigByKey(@Param("configKey") String configKey);
public abstract Config queryConfigByGroupKey(Map<String,?> queryConfigMap);
public abstract List<Map<String,?>> queryConfigListByGroup(Map<String,?> queryConfigMap);
public abstract List<Map<String, ?>> queryTpmeConfigListByGroup(Map<String, ?> queryConfigMap);
}
ConfigMapper.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <mapper namespace="com.alphajuns.ssm.mybatis.ConfigMapper" > <resultMap id="BaseResultMap" type="com.alphajuns.ssm.pojo.Config" > <id column="config_key" property="configKey" jdbcType="VARCHAR" /> <result column="config_group" property="configGroup" jdbcType="VARCHAR" /> <result column="config_value" property="configValue" jdbcType="VARCHAR" /> <result column="description" property="description" jdbcType="VARCHAR" /> </resultMap> <select id="queryConfigByKey" resultMap="BaseResultMap" parameterType="java.lang.String" > select T.config_key, T.config_value, T.description from CONFIG T where t.config_key = #{configKey,jdbcType=VARCHAR} </select> <select id="queryConfigByGroupKey" resultMap="BaseResultMap" parameterType="map" > select T.config_key, T.config_value, T.config_group, T.description from CONFIG T where t.config_key = #{configKey,jdbcType=VARCHAR} <choose> <when test="configGroup!=null and configGroup!=‘‘"> and T.config_group=#{configGroup,jdbcType=VARCHAR} </when> <otherwise> and t.config_group is null or t.config_group=‘‘ </otherwise> </choose> </select> <select id="queryConfigListByGroup" resultType="map" parameterType="java.lang.String" > select T.config_group, T.config_key, T.config_value, T.description from CONFIG T where t.config_group = #{configGroup,jdbcType=VARCHAR} </select> <select id="queryTpmeConfigListByGroup" resultType="map" parameterType="java.lang.String" > select T.config_group, T.config_key, T.config_value, T.description <!-- 这里查询配置，拼接一个config_key、config_value返回 fanj 20191120 --> , (T.config_value||T.config_key) AS CONFIG_VALUE_AND_CONFIG_KEY from CONFIG T where t.config_group = #{configGroup,jdbcType=VARCHAR} </select> </mapper>
标签：ext enc resultmap static image oid ibatis The 总数
原文地址：https://www.cnblogs.com/alphajuns/p/13173624.html
