From 68c75b0650c2d2f409fe7b3686f96d8e641772db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E7=9A=93=E9=9B=AF?= <18868469283@qq.com>
Date: Sun, 13 Jan 2019 21:00:55 +0800
Subject: [PATCH] =?UTF-8?q?=E5=B7=A5=E5=85=B7=E4=BB=A3=E7=A0=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .../java/com/sock/mall/util/JsonUtil.java     |  61 ++++++++
 .../java/com/sock/mall/util/JwtTokenUtil.java | 134 ++++++++++++++++++
 .../java/com/sock/mall/util/RequestUtil.java  |  67 +++++++++
 3 files changed, 262 insertions(+)
 create mode 100644 代码库/mall-admin/src/main/java/com/sock/mall/util/JsonUtil.java
 create mode 100644 代码库/mall-admin/src/main/java/com/sock/mall/util/JwtTokenUtil.java
 create mode 100644 代码库/mall-admin/src/main/java/com/sock/mall/util/RequestUtil.java

diff --git a/代码库/mall-admin/src/main/java/com/sock/mall/util/JsonUtil.java b/代码库/mall-admin/src/main/java/com/sock/mall/util/JsonUtil.java
new file mode 100644
index 0000000..20fa06d
--- /dev/null
+++ b/代码库/mall-admin/src/main/java/com/sock/mall/util/JsonUtil.java
@@ -0,0 +1,61 @@
+package com.macro.mall.util;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.util.List;
+
+/**
+ * Jackson json���л��ͷ����л�������
+ */
+public class JsonUtil {
+
+    // ����jackson����
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+
+    /**
+     * ������ת����json�ַ�����
+     */
+    public static String objectToJson(Object data) {
+    	try {
+			String string = MAPPER.writeValueAsString(data);
+			return string;
+		} catch (JsonProcessingException e) {
+			e.printStackTrace();
+		}
+    	return null;
+    }
+    
+    /**
+     * ��json�����ת��Ϊ����
+     * 
+     * @param jsonData json����
+     * @param beanType �����е�object����
+     */
+    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;
+    }
+    
+    /**
+     * ��json����ת����pojo����list
+     */
+    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;
+    }
+    
+}
\ No newline at end of file
diff --git a/代码库/mall-admin/src/main/java/com/sock/mall/util/JwtTokenUtil.java b/代码库/mall-admin/src/main/java/com/sock/mall/util/JwtTokenUtil.java
new file mode 100644
index 0000000..029b6cf
--- /dev/null
+++ b/代码库/mall-admin/src/main/java/com/sock/mall/util/JwtTokenUtil.java
@@ -0,0 +1,134 @@
+package com.macro.mall.util;
+
+import io.jsonwebtoken.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.stereotype.Component;
+
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * JwtToken���ɵĹ�����
+ * JWT token�ĸ�ʽ��header.payload.signature
+ * header�ĸ�ʽ���㷨��token�����ͣ���
+ * {"alg": "HS512","typ": "JWT"}
+ * payload�ĸ�ʽ���û���������ʱ�䡢����ʱ�䣩��
+ * {"sub":"wang","created":1489079981393,"exp":1489684781}
+ * signature�������㷨��
+ * HMACSHA256(base64UrlEncode(header) + "." +base64UrlEncode(payload),secret)
+ */
+@Component
+public class JwtTokenUtil {
+    private static final Logger LOGGER = LoggerFactory.getLogger(JwtTokenUtil.class);
+    private static final String CLAIM_KEY_USERNAME = "sub";
+    private static final String CLAIM_KEY_CREATED = "created";
+    @Value("${jwt.secret}")
+    private String secret;
+    @Value("${jwt.expiration}")
+    private Long expiration;
+
+    /**
+     * ���ݸ�������JWT��token
+     */
+    private String generateToken(Map<String, Object> claims) {
+        return Jwts.builder()
+                .setClaims(claims)
+                .setExpiration(generateExpirationDate())
+                .signWith(SignatureAlgorithm.HS512, secret)
+                .compact();
+    }
+
+    /**
+     * ��token�л�ȡJWT�еĸ���
+     */
+    private Claims getClaimsFromToken(String token) {
+        Claims claims = null;
+        try {
+            claims = Jwts.parser()
+                    .setSigningKey(secret)
+                    .parseClaimsJws(token)
+                    .getBody();
+        } catch (Exception e) {
+            LOGGER.info("JWT��ʽ��֤ʧ��:{}",token);
+        }
+        return claims;
+    }
+
+    /**
+     * ����token�Ĺ���ʱ��
+     */
+    private Date generateExpirationDate() {
+        return new Date(System.currentTimeMillis() + expiration * 1000);
+    }
+
+    /**
+     * ��token�л�ȡ��¼�û���
+     */
+    public String getUserNameFromToken(String token) {
+        String username;
+        try {
+            Claims claims = getClaimsFromToken(token);
+            username =  claims.getSubject();
+        } catch (Exception e) {
+            username = null;
+        }
+        return username;
+    }
+
+    /**
+     * ��֤token�Ƿ���Ч
+     *
+     * @param token       �ͻ��˴����token
+     * @param userDetails �����ݿ��в�ѯ�������û���Ϣ
+     */
+    public boolean validateToken(String token, UserDetails userDetails) {
+        String username = getUserNameFromToken(token);
+        return username.equals(userDetails.getUsername()) && !isTokenExpired(token);
+    }
+
+    /**
+     * �ж�token�Ƿ��Ѿ�ʧЧ
+     */
+    private boolean isTokenExpired(String token) {
+        Date expiredDate = getExpiredDateFromToken(token);
+        return expiredDate.before(new Date());
+    }
+
+    /**
+     * ��token�л�ȡ����ʱ��
+     */
+    private Date getExpiredDateFromToken(String token) {
+        Claims claims = getClaimsFromToken(token);
+        return claims.getExpiration();
+    }
+
+    /**
+     * �����û���Ϣ����token
+     */
+    public String generateToken(UserDetails userDetails) {
+        Map<String, Object> claims = new HashMap<>();
+        claims.put(CLAIM_KEY_USERNAME, userDetails.getUsername());
+        claims.put(CLAIM_KEY_CREATED, new Date());
+        return generateToken(claims);
+    }
+
+    /**
+     * �ж�token�Ƿ���Ա�ˢ��
+     */
+    public boolean canRefresh(String token) {
+        return !isTokenExpired(token);
+    }
+
+    /**
+     * ˢ��token
+     */
+    public String refreshToken(String token) {
+        Claims claims = getClaimsFromToken(token);
+        claims.put(CLAIM_KEY_CREATED, new Date());
+        return generateToken(claims);
+    }
+}
diff --git a/代码库/mall-admin/src/main/java/com/sock/mall/util/RequestUtil.java b/代码库/mall-admin/src/main/java/com/sock/mall/util/RequestUtil.java
new file mode 100644
index 0000000..0d1e12d
--- /dev/null
+++ b/代码库/mall-admin/src/main/java/com/sock/mall/util/RequestUtil.java
@@ -0,0 +1,67 @@
+package com.macro.mall.util;
+
+import javax.servlet.http.HttpServletRequest;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * request������
+ */
+public class RequestUtil {
+
+	/**
+	 * �Ƴ�requestָ������
+	 */
+	public String removeParam(HttpServletRequest request, String paramName) {
+		String queryString = "";
+		Enumeration keys = request.getParameterNames();
+		while (keys.hasMoreElements()) {
+			String key = (String) keys.nextElement();
+			if (key.equals(paramName)) {
+				continue;
+			}
+			if ("".equals(queryString)) {
+				queryString = key + "=" + request.getParameter(key);
+			} else {
+				queryString += "&" + key + "=" + request.getParameter(key);
+			}
+		}
+		return queryString;
+	}
+
+	/**
+	 * ��ȡ����basePath
+	 */
+	public static String getBasePath(HttpServletRequest request) {
+		StringBuffer basePath = new StringBuffer();
+		String scheme = request.getScheme();
+		String domain = request.getServerName();
+		int port = request.getServerPort();
+		basePath.append(scheme);
+		basePath.append("://");
+		basePath.append(domain);
+		if("http".equalsIgnoreCase(scheme) && 80 != port) {
+			basePath.append(":").append(String.valueOf(port));
+		} else if("https".equalsIgnoreCase(scheme) && port != 443) {
+			basePath.append(":").append(String.valueOf(port));
+		}
+		return basePath.toString();
+	}
+
+	/**
+	 * �����в���תMap<String, String>,for֧�����첽�ص�,ƽʱ����ֱ��ʹ��request.getParameterMap(),����Map<String, String[]>
+	 */
+	public static Map<String, String> getParameterMap(HttpServletRequest request) {
+		Map<String, String> result = new HashMap<>();
+		Enumeration parameterNames = request.getParameterNames();
+		while (parameterNames.hasMoreElements()) {
+			String parameterName = (String) parameterNames.nextElement();
+			result.put(parameterName, request.getParameter(parameterName));
+		}
+		return result;
+	}
+
+}
\ No newline at end of file