整理收集的一些常用java工具类
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1.json转换工具
package com.taotao.utils;import java.util.List;import com.fasterxml.jackson.core.JsonProcessingException;import com.fasterxml.jackson.databind.JavaType;import com.fasterxml.jackson.databind.JsonNode;import com.fasterxml.jackson.databind.ObjectMapper;/** * json转换工具类 */public class JsonUtils { // 定义jackson对象 private static final ObjectMapper MAPPER = new ObjectMapper(); /** * 将对象转换成json字符串。 * <p>Title: pojoToJson</p> * <p>Description: </p> * @param data * @return */ public static String objectToJson(Object data) { try {String string = MAPPER.writeValueAsString(data);return string;} catch (JsonProcessingException e) {e.printStackTrace();} return null; } /** * 将json结果集转化为对象 * * @param jsonData json数据 * @param clazz 对象中的object类型 * @return */ public static <T> T jsonToPojo(String jsonData, Class<T> beanType) { try { T t = MAPPER.readValue(jsonData, beanType); return t; } catch (Exception e) { e.printStackTrace(); } return null; } /** * 将json数据转换成pojo对象list * <p>Title: jsonToList</p> * <p>Description: </p> * @param jsonData * @param beanType * @return */ public static <T>List<T> jsonToList(String jsonData, Class<T> beanType) { JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, beanType); try { List<T> list = MAPPER.readValue(jsonData, javaType); return list;} catch (Exception e) {e.printStackTrace();} return null; } }2.cookie的读写
package com.taotao.common.utils;import java.io.UnsupportedEncodingException;import java.net.URLDecoder;import java.net.URLEncoder;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;/** * * Cookie 工具类 * */public final class CookieUtils { /** * 得到Cookie的值, 不编码 * * @param request * @param cookieName * @return */ public static String getCookieValue(HttpServletRequest request, String cookieName) { return getCookieValue(request, cookieName, false); } /** * 得到Cookie的值, * * @param request * @param cookieName * @return */ public static String getCookieValue(HttpServletRequest request, String cookieName, boolean isDecoder) { Cookie[] cookieList = request.getCookies(); if (cookieList == null || cookieName == null) { return null; } String retValue = null; try { for (int i = 0; i < cookieList.length; i++) { if (cookieList[i].getName().equals(cookieName)) { if (isDecoder) { retValue = URLDecoder.decode(cookieList[i].getValue(), "UTF-8"); } else { retValue = cookieList[i].getValue(); } break; } } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return retValue; } /** * 得到Cookie的值, * * @param request * @param cookieName * @return */ public static String getCookieValue(HttpServletRequest request, String cookieName, String encodeString) { Cookie[] cookieList = request.getCookies(); if (cookieList == null || cookieName == null) { return null; } String retValue = null; try { for (int i = 0; i < cookieList.length; i++) { if (cookieList[i].getName().equals(cookieName)) { retValue = URLDecoder.decode(cookieList[i].getValue(), encodeString); break; } } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return retValue; } /** * 设置Cookie的值 不设置生效时间默认浏览器关闭即失效,也不编码 */ public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName, String cookieValue) { setCookie(request, response, cookieName, cookieValue, -1); } /** * 设置Cookie的值 在指定时间内生效,但不编码 */ public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName, String cookieValue, int cookieMaxage) { setCookie(request, response, cookieName, cookieValue, cookieMaxage, false); } /** * 设置Cookie的值 不设置生效时间,但编码 */ public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName, String cookieValue, boolean isEncode) { setCookie(request, response, cookieName, cookieValue, -1, isEncode); } /** * 设置Cookie的值 在指定时间内生效, 编码参数 */ public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName, String cookieValue, int cookieMaxage, boolean isEncode) { doSetCookie(request, response, cookieName, cookieValue, cookieMaxage, isEncode); } /** * 设置Cookie的值 在指定时间内生效, 编码参数(指定编码) */ public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName, String cookieValue, int cookieMaxage, String encodeString) { doSetCookie(request, response, cookieName, cookieValue, cookieMaxage, encodeString); } /** * 删除Cookie带cookie域名 */ public static void deleteCookie(HttpServletRequest request, HttpServletResponse response, String cookieName) { doSetCookie(request, response, cookieName, "", -1, false); } /** * 设置Cookie的值，并使其在指定时间内生效 * * @param cookieMaxage cookie生效的最大秒数 */ private static final void doSetCookie(HttpServletRequest request, HttpServletResponse response, String cookieName, String cookieValue, int cookieMaxage, boolean isEncode) { try { if (cookieValue == null) { cookieValue = ""; } else if (isEncode) { cookieValue = URLEncoder.encode(cookieValue, "utf-8"); } Cookie cookie = new Cookie(cookieName, cookieValue); if (cookieMaxage > 0) cookie.setMaxAge(cookieMaxage); if (null != request) {// 设置域名的cookie String domainName = getDomainName(request); System.out.println(domainName); if (!"localhost".equals(domainName)) { cookie.setDomain(domainName); } } cookie.setPath("/"); response.addCookie(cookie); } catch (Exception e) { e.printStackTrace(); } } /** * 设置Cookie的值，并使其在指定时间内生效 * * @param cookieMaxage cookie生效的最大秒数 */ private static final void doSetCookie(HttpServletRequest request, HttpServletResponse response, String cookieName, String cookieValue, int cookieMaxage, String encodeString) { try { if (cookieValue == null) { cookieValue = ""; } else { cookieValue = URLEncoder.encode(cookieValue, encodeString); } Cookie cookie = new Cookie(cookieName, cookieValue); if (cookieMaxage > 0) cookie.setMaxAge(cookieMaxage); if (null != request) {// 设置域名的cookie String domainName = getDomainName(request); System.out.println(domainName); if (!"localhost".equals(domainName)) { cookie.setDomain(domainName); } } cookie.setPath("/"); response.addCookie(cookie); } catch (Exception e) { e.printStackTrace(); } } /** * 得到cookie的域名 */ private static final String getDomainName(HttpServletRequest request) { String domainName = null; String serverName = request.getRequestURL().toString(); if (serverName == null || serverName.equals("")) { domainName = ""; } else { serverName = serverName.toLowerCase(); serverName = serverName.substring(7); final int end = serverName.indexOf("/"); serverName = serverName.substring(0, end); final String[] domains = serverName.split("\\."); int len = domains.length; if (len > 3) { // www.xxx.com.cn domainName = "." + domains[len - 3] + "." + domains[len - 2] + "." + domains[len - 1]; } else if (len <= 3 && len > 1) { // xxx.com or xxx.cn domainName = "." + domains[len - 2] + "." + domains[len - 1]; } else { domainName = serverName; } } if (domainName != null && domainName.indexOf(":") > 0) { String[] ary = domainName.split("\\:"); domainName = ary[0]; } return domainName; }}3.HttpClientUtil 相关包及文档下载
package com.taotao.utils;import java.io.IOException;import java.net.URI;import java.util.ArrayList;import java.util.List;import java.util.Map;import org.apache.http.NameValuePair;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.utils.URIBuilder;import org.apache.http.entity.ContentType;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;public class HttpClientUtil {public static String doGet(String url, Map<String, String> param) {// 创建Httpclient对象CloseableHttpClient httpclient = HttpClients.createDefault();String resultString = "";CloseableHttpResponse response = null;try {// 创建uriURIBuilder builder = new URIBuilder(url);if (param != null) {for (String key : param.keySet()) {builder.addParameter(key, param.get(key));}}URI uri = builder.build();// 创建http GET请求HttpGet httpGet = new HttpGet(uri);// 执行请求response = httpclient.execute(httpGet);// 判断返回状态是否为200if (response.getStatusLine().getStatusCode() == 200) {resultString = EntityUtils.toString(response.getEntity(), "UTF-8");}} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpclient.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}public static String doGet(String url) {return doGet(url, null);}public static String doPost(String url, Map<String, String> param) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建参数列表if (param != null) {List<NameValuePair> paramList = new ArrayList<>();for (String key : param.keySet()) {paramList.add(new BasicNameValuePair(key, param.get(key)));}// 模拟表单UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);httpPost.setEntity(entity);}// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "utf-8");} catch (Exception e) {e.printStackTrace();} finally {try {response.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}return resultString;}public static String doPost(String url) {return doPost(url, null);}public static String doPostJson(String url, String json) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建请求内容StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);httpPost.setEntity(entity);// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "utf-8");} catch (Exception e) {e.printStackTrace();} finally {try {response.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}return resultString;}}4.FastDFSClient工具类 相关包以及文档下载
package cn.itcast.fastdfs.cliennt;import org.csource.common.NameValuePair;import org.csource.fastdfs.ClientGlobal;import org.csource.fastdfs.StorageClient1;import org.csource.fastdfs.StorageServer;import org.csource.fastdfs.TrackerClient;import org.csource.fastdfs.TrackerServer;public class FastDFSClient {private TrackerClient trackerClient = null;private TrackerServer trackerServer = null;private StorageServer storageServer = null;private StorageClient1 storageClient = null;public FastDFSClient(String conf) throws Exception {if (conf.contains("classpath:")) {conf = conf.replace("classpath:", this.getClass().getResource("/").getPath());}ClientGlobal.init(conf);trackerClient = new TrackerClient();trackerServer = trackerClient.getConnection();storageServer = null;storageClient = new StorageClient1(trackerServer, storageServer);}/** * 上传文件方法 * <p>Title: uploadFile</p> * <p>Description: </p> * @param fileName 文件全路径 * @param extName 文件扩展名，不包含（.） * @param metas 文件扩展信息 * @return * @throws Exception */public String uploadFile(String fileName, String extName, NameValuePair[] metas) throws Exception {String result = storageClient.upload_file1(fileName, extName, metas);return result;}public String uploadFile(String fileName) throws Exception {return uploadFile(fileName, null, null);}public String uploadFile(String fileName, String extName) throws Exception {return uploadFile(fileName, extName, null);}/** * 上传文件方法 * <p>Title: uploadFile</p> * <p>Description: </p> * @param fileContent 文件的内容，字节数组 * @param extName 文件扩展名 * @param metas 文件扩展信息 * @return * @throws Exception */public String uploadFile(byte[] fileContent, String extName, NameValuePair[] metas) throws Exception {String result = storageClient.upload_file1(fileContent, extName, metas);return result;}public String uploadFile(byte[] fileContent) throws Exception {return uploadFile(fileContent, null, null);}public String uploadFile(byte[] fileContent, String extName) throws Exception {return uploadFile(fileContent, extName, null);}}public class FastDFSTest {@Testpublic void testFileUpload() throws Exception {// 1、加载配置文件，配置文件中的内容就是tracker服务的地址。ClientGlobal.init("D:/workspaces-itcast/term197/taotao-manager-web/src/main/resources/resource/client.conf");// 2、创建一个TrackerClient对象。直接new一个。TrackerClient trackerClient = new TrackerClient();// 3、使用TrackerClient对象创建连接，获得一个TrackerServer对象。TrackerServer trackerServer = trackerClient.getConnection();// 4、创建一个StorageServer的引用，值为nullStorageServer storageServer = null;// 5、创建一个StorageClient对象，需要两个参数TrackerServer对象、StorageServer的引用StorageClient storageClient = new StorageClient(trackerServer, storageServer);// 6、使用StorageClient对象上传图片。//扩展名不带“.”String[] strings = storageClient.upload_file("D:/Documents/Pictures/images/200811281555127886.jpg", "jpg", null);// 7、返回数组。包含组名和图片的路径。for (String string : strings) {System.out.println(string);}}}
5.获取异常的堆栈信息
package com.taotao.utils;import java.io.PrintWriter;import java.io.StringWriter;public class ExceptionUtil {/** * 获取异常的堆栈信息 * * @param t * @return */public static String getStackTrace(Throwable t) {StringWriter sw = new StringWriter();PrintWriter pw = new PrintWriter(sw);try {t.printStackTrace(pw);return sw.toString();} finally {pw.close();}}}
6.easyUIDataGrid对象返回值
package com.taotao.result;import java.util.List;/** * easyUIDataGrid对象返回值 * <p>Title: EasyUIResult</p> * <p>Description: </p> * <p>Company: www.itcast.com</p> * @author入云龙 * @date2015年7月21日下午4:12:52 * @version 1.0 */public class EasyUIResult {private Integer total;private List<?> rows;public EasyUIResult(Integer total, List<?> rows) {this.total = total;this.rows = rows;}public EasyUIResult(long total, List<?> rows) {this.total = (int) total;this.rows = rows;}public Integer getTotal() {return total;}public void setTotal(Integer total) {this.total = total;}public List<?> getRows() {return rows;}public void setRows(List<?> rows) {this.rows = rows;}}7.ftp上传下载工具类
package com.taotao.utils;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import org.apache.commons.net.ftp.FTP;import org.apache.commons.net.ftp.FTPClient;import org.apache.commons.net.ftp.FTPFile;import org.apache.commons.net.ftp.FTPReply;/** * ftp上传下载工具类 * <p>Title: FtpUtil</p> * <p>Description: </p> * <p>Company: www.itcast.com</p> * @author入云龙 * @date2015年7月29日下午8:11:51 * @version 1.0 */public class FtpUtil {/** * Description: 向FTP服务器上传文件 * @param host FTP服务器hostname * @param port FTP服务器端口 * @param username FTP登录账号 * @param password FTP登录密码 * @param basePath FTP服务器基础目录 * @param filePath FTP服务器文件存放路径。例如分日期存放：/2015/01/01。文件的路径为basePath+filePath * @param filename 上传到FTP服务器上的文件名 * @param input 输入流 * @return 成功返回true，否则返回false */ public static boolean uploadFile(String host, int port, String username, String password, String basePath,String filePath, String filename, InputStream input) {boolean result = false;FTPClient ftp = new FTPClient();try {int reply;ftp.connect(host, port);// 连接FTP服务器// 如果采用默认端口，可以使用ftp.connect(host)的方式直接连接FTP服务器ftp.login(username, password);// 登录reply = ftp.getReplyCode();if (!FTPReply.isPositiveCompletion(reply)) {ftp.disconnect();return result;}//切换到上传目录if (!ftp.changeWorkingDirectory(basePath+filePath)) {//如果目录不存在创建目录String[] dirs = filePath.split("/");String tempPath = basePath;for (String dir : dirs) {if (null == dir || "".equals(dir)) continue;tempPath += "/" + dir;if (!ftp.changeWorkingDirectory(tempPath)) {if (!ftp.makeDirectory(tempPath)) {return result;} else {ftp.changeWorkingDirectory(tempPath);}}}}//设置上传文件的类型为二进制类型ftp.setFileType(FTP.BINARY_FILE_TYPE);//上传文件if (!ftp.storeFile(filename, input)) {return result;}input.close();ftp.logout();result = true;} catch (IOException e) {e.printStackTrace();} finally {if (ftp.isConnected()) {try {ftp.disconnect();} catch (IOException ioe) {}}}return result;}/** * Description: 从FTP服务器下载文件 * @param host FTP服务器hostname * @param port FTP服务器端口 * @param username FTP登录账号 * @param password FTP登录密码 * @param remotePath FTP服务器上的相对路径 * @param fileName 要下载的文件名 * @param localPath 下载后保存到本地的路径 * @return */ public static boolean downloadFile(String host, int port, String username, String password, String remotePath,String fileName, String localPath) {boolean result = false;FTPClient ftp = new FTPClient();try {int reply;ftp.connect(host, port);// 如果采用默认端口，可以使用ftp.connect(host)的方式直接连接FTP服务器ftp.login(username, password);// 登录reply = ftp.getReplyCode();if (!FTPReply.isPositiveCompletion(reply)) {ftp.disconnect();return result;}ftp.changeWorkingDirectory(remotePath);// 转移到FTP服务器目录FTPFile[] fs = ftp.listFiles();for (FTPFile ff : fs) {if (ff.getName().equals(fileName)) {File localFile = new File(localPath + "/" + ff.getName());OutputStream is = new FileOutputStream(localFile);ftp.retrieveFile(ff.getName(), is);is.close();}}ftp.logout();result = true;} catch (IOException e) {e.printStackTrace();} finally {if (ftp.isConnected()) {try {ftp.disconnect();} catch (IOException ioe) {}}}return result;}public static void main(String[] args) {try { FileInputStream in=new FileInputStream(new File("D:\\temp\\image\\gaigeming.jpg")); boolean flag = uploadFile("192.168.25.133", 21, "ftpuser", "ftpuser", "/home/ftpuser/www/images","/2015/01/21", "gaigeming.jpg", in); System.out.println(flag); } catch (FileNotFoundException e) { e.printStackTrace(); } }}8.各种id生成策略
package com.taotao.utils;import java.util.Random;/** * 各种id生成策略 * <p>Title: IDUtils</p> * <p>Description: </p> * @date2015年7月22日下午2:32:10 * @version 1.0 */public class IDUtils {/** * 图片名生成 */public static String genImageName() {//取当前时间的长整形值包含毫秒long millis = System.currentTimeMillis();//long millis = System.nanoTime();//加上三位随机数Random random = new Random();int end3 = random.nextInt(999);//如果不足三位前面补0String str = millis + String.format("%03d", end3);return str;}/** * 商品id生成 */public static long genItemId() {//取当前时间的长整形值包含毫秒long millis = System.currentTimeMillis();//long millis = System.nanoTime();//加上两位随机数Random random = new Random();int end2 = random.nextInt(99);//如果不足两位前面补0String str = millis + String.format("%02d", end2);long id = new Long(str);return id;}public static void main(String[] args) {for(int i=0;i< 100;i++)System.out.println(genItemId());}}9.上传图片返回值
package com.result;/** * 上传图片返回值 * <p>Title: PictureResult</p> * <p>Description: </p> * <p>Company: www.itcast.com</p> * @author入云龙 * @date2015年7月22日下午2:09:02 * @version 1.0 */public class PictureResult {/** * 上传图片返回值，成功：0失败：1 */private Integer error;/** * 回显图片使用的url */private String url;/** * 错误时的错误消息 */private String message;public PictureResult(Integer state, String url) {this.url = url;this.error = state;}public PictureResult(Integer state, String url, String errorMessage) {this.url = url;this.error = state;this.message = errorMessage;}public Integer getError() {return error;}public void setError(Integer error) {this.error = error;}public String getUrl() {return url;}public void setUrl(String url) {this.url = url;}public String getMessage() {return message;}public void setMessage(String message) {this.message = message;}}10.自定义响应结构
package com.result;import java.util.List;import com.fasterxml.jackson.databind.JsonNode;import com.fasterxml.jackson.databind.ObjectMapper;/** * 自定义响应结构 */public class TaotaoResult { // 定义jackson对象 private static final ObjectMapper MAPPER = new ObjectMapper(); // 响应业务状态 private Integer status; // 响应消息 private String msg; // 响应中的数据 private Object data; public static TaotaoResult build(Integer status, String msg, Object data) { return new TaotaoResult(status, msg, data); } public static TaotaoResult ok(Object data) { return new TaotaoResult(data); } public static TaotaoResult ok() { return new TaotaoResult(null); } public TaotaoResult() { } public static TaotaoResult build(Integer status, String msg) { return new TaotaoResult(status, msg, null); } public TaotaoResult(Integer status, String msg, Object data) { this.status = status; this.msg = msg; this.data = data; } public TaotaoResult(Object data) { this.status = 200; this.msg = "OK"; this.data = data; }// public Boolean isOK() {// return this.status == 200;// } public Integer getStatus() { return status; } public void setStatus(Integer status) { this.status = status; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public Object getData() { return data; } public void setData(Object data) { this.data = data; } /** * 将json结果集转化为TaotaoResult对象 * * @param jsonData json数据 * @param clazz TaotaoResult中的object类型 * @return */ public static TaotaoResult formatToPojo(String jsonData, Class<?> clazz) { try { if (clazz == null) { return MAPPER.readValue(jsonData, TaotaoResult.class); } JsonNode jsonNode = MAPPER.readTree(jsonData); JsonNode data = jsonNode.get("data"); Object obj = null; if (clazz != null) { if (data.isObject()) { obj = MAPPER.readValue(data.traverse(), clazz); } else if (data.isTextual()) { obj = MAPPER.readValue(data.asText(), clazz); } } return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj); } catch (Exception e) { return null; } } /** * 没有object对象的转化 * * @param json * @return */ public static TaotaoResult format(String json) { try { return MAPPER.readValue(json, TaotaoResult.class); } catch (Exception e) { e.printStackTrace(); } return null; } /** * Object是集合转化 * * @param jsonData json数据 * @param clazz 集合中的类型 * @return */ public static TaotaoResult formatToList(String jsonData, Class<?> clazz) { try { JsonNode jsonNode = MAPPER.readTree(jsonData); JsonNode data = jsonNode.get("data"); Object obj = null; if (data.isArray() && data.size() > 0) { obj = MAPPER.readValue(data.traverse(), MAPPER.getTypeFactory().constructCollectionType(List.class, clazz)); } return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj); } catch (Exception e) { return null; } }}11.jedis操作
package com.taotao.jedis;public interface JedisClient {String set(String key, String value);String get(String key);Boolean exists(String key);Long expire(String key, int seconds);Long ttl(String key);Long incr(String key);Long hset(String key, String field, String value);String hget(String key, String field);Long hdel(String key, String... field);}package com.taotao.jedis;import org.springframework.beans.factory.annotation.Autowired;import redis.clients.jedis.JedisCluster;public class JedisClientCluster implements JedisClient {@Autowiredprivate JedisCluster jedisCluster;@Overridepublic String set(String key, String value) {return jedisCluster.set(key, value);}@Overridepublic String get(String key) {return jedisCluster.get(key);}@Overridepublic Boolean exists(String key) {return jedisCluster.exists(key);}@Overridepublic Long expire(String key, int seconds) {return jedisCluster.expire(key, seconds);}@Overridepublic Long ttl(String key) {return jedisCluster.ttl(key);}@Overridepublic Long incr(String key) {return jedisCluster.incr(key);}@Overridepublic Long hset(String key, String field, String value) {return jedisCluster.hset(key, field, value);}@Overridepublic String hget(String key, String field) {return jedisCluster.hget(key, field);}@Overridepublic Long hdel(String key, String... field) {return jedisCluster.hdel(key, field);}}package com.taotao.jedis;import org.springframework.beans.factory.annotation.Autowired;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;public class JedisClientPool implements JedisClient {@Autowiredprivate JedisPool jedisPool;@Overridepublic String set(String key, String value) {Jedis jedis = jedisPool.getResource();String result = jedis.set(key, value);jedis.close();return result;}@Overridepublic String get(String key) {Jedis jedis = jedisPool.getResource();String result = jedis.get(key);jedis.close();return result;}@Overridepublic Boolean exists(String key) {Jedis jedis = jedisPool.getResource();Boolean result = jedis.exists(key);jedis.close();return result;}@Overridepublic Long expire(String key, int seconds) {Jedis jedis = jedisPool.getResource();Long result = jedis.expire(key, seconds);jedis.close();return result;}@Overridepublic Long ttl(String key) {Jedis jedis = jedisPool.getResource();Long result = jedis.ttl(key);jedis.close();return result;}@Overridepublic Long incr(String key) {Jedis jedis = jedisPool.getResource();Long result = jedis.incr(key);jedis.close();return result;}@Overridepublic Long hset(String key, String field, String value) {Jedis jedis = jedisPool.getResource();Long result = jedis.hset(key, field, value);jedis.close();return result;}@Overridepublic String hget(String key, String field) {Jedis jedis = jedisPool.getResource();String result = jedis.hget(key, field);jedis.close();return result;}@Overridepublic Long hdel(String key, String... field) {Jedis jedis = jedisPool.getResource();Long result = jedis.hdel(key, field);jedis.close();return result;}}12.待续
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- 一些常用的mysql命令收集整理
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- 收集整理的一些java编程良好习惯
- 一些Java知识点的收集整理
- 收集的一些工具类
- 收集java常用的一些方法
- 收集的一些常用java正则表达式
- C#的一些常用函数（收集整理）
- Oracle常用的一些命令和知识点收集整理
- Android 常用功能模块的一些Demo收集整理
- 收集的一些工具
- 收集了一些站长们常用的SEO工具
- java中常用的时间工具类整理
- Java操作IM的一些资源(downmoon收集整理)
- Fragment底部导航栏实现
- mathjax 渲染LaTeX 数学公式 使用教程
- RDD Join 性能调优
- MyAdapter
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- Linux中dd命令的使用
- ThinkPHP5.0商城项目目录搭建(菜鸟)
- 高效算法设计
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- css-当图片宽度大于父元素宽度时如何使图片居中显示
- 搬瓦工/BandwagonHost vps选择技巧
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