常用java工具类

分享一个非常好用的一个的开源得工具类框架hutool
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。

  • Title: pojoToJson

  • Description:

  • @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 jsonToPojo(String jsonData, Class 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

  • Title: jsonToList

  • Description:

  • @param jsonData

  • @param beanType

  • @return
    */
    public static List jsonToList(String jsonData, Class beanType) {
    JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, beanType);
    try {
    List 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uri
		URIBuilder 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200
		if (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 block
			e.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 block
			e.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 {

@Test
public 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null
	StorageServer 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

• Title: EasyUIResult

• Description:

• Company: www.itcast.com

• @author 入云龙

• @date 2015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

• Title: FtpUtil

• Description:

• Company: www.itcast.com

• @author 入云龙

• @date 2015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

• Title: IDUtils

• Description:

• @date 2015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0
    String 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0
    String 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

• Title: PictureResult

• Description:

• Company: www.itcast.com

• @author 入云龙

• @date 2015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 {

@Autowired
private JedisCluster jedisCluster;

@Override
public String set(String key, String value) {
	return jedisCluster.set(key, value);
}

@Override
public String get(String key) {
	return jedisCluster.get(key);
}

@Override
public Boolean exists(String key) {
	return jedisCluster.exists(key);
}

@Override
public Long expire(String key, int seconds) {
	return jedisCluster.expire(key, seconds);
}

@Override
public Long ttl(String key) {
	return jedisCluster.ttl(key);
}

@Override
public Long incr(String key) {
	return jedisCluster.incr(key);
}

@Override
public Long hset(String key, String field, String value) {
	return jedisCluster.hset(key, field, value);
}

@Override
public String hget(String key, String field) {
	return jedisCluster.hget(key, field);
}

@Override
public 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 {

@Autowired
private JedisPool jedisPool;


@Override
public String set(String key, String value) {
	Jedis jedis = jedisPool.getResource();
	String result = jedis.set(key, value);
	jedis.close();
	return result;
}


@Override
public String get(String key) {
	Jedis jedis = jedisPool.getResource();
	String result = jedis.get(key);
	jedis.close();
	return result;
}


@Override
public Boolean exists(String key) {
	Jedis jedis = jedisPool.getResource();
	Boolean result = jedis.exists(key);
	jedis.close();
	return result;
}


@Override
public Long expire(String key, int seconds) {
	Jedis jedis = jedisPool.getResource();
	Long result = jedis.expire(key, seconds);
	jedis.close();
	return result;
}


@Override
public Long ttl(String key) {
	Jedis jedis = jedisPool.getResource();
	Long result = jedis.ttl(key);
	jedis.close();
	return result;
}


@Override
public Long incr(String key) {
	Jedis jedis = jedisPool.getResource();
	Long result = jedis.incr(key);
	jedis.close();
	return result;
}


@Override
public Long hset(String key, String field, String value) {
	Jedis jedis = jedisPool.getResource();
	Long result = jedis.hset(key, field, value);
	jedis.close();
	return result;
}


@Override
public String hget(String key, String field) {
	Jedis jedis = jedisPool.getResource();
	String result = jedis.hget(key, field);
	jedis.close();
	return result;
}


@Override
public Long hdel(String key, String... field) {
	Jedis jedis = jedisPool.getResource();
	Long result = jedis.hdel(key, field);
	jedis.close();
	return result;
}

}