练习题(二)

4. 字符串练习题(6)中的数据存在文件data.txt中，模板存在文件template.tmpl中，编写函数：
public static String composeMessage(String dataFileName, String templateFileName)
实现将数据文件和模板文件的内容组织成完整消息。
在此基础上实现一个命令行工具，可将数据和模板文件组成的消息存到指定文件中。要求能准确报告出错误原因。命令语法：
java cm -m dataFileName -v templateFileName -o outputFileName
限时：学习20分，编码30分，测试30

---------------------------------------------------------------------------
#客户号 姓名 所述机构号 性别 帐号 发生时间 发生额
000001|刘德华|0000|1|4155990188888888|20060720200005|300.00
000201|晓龙|0002|1|4155990199999999|20060720200005|500.00
000101|黄晓明|0012|1|4155990100000000|20060720200005|1000.50
000101|张东健|0012|1|4155990155555555|20060720200005|600.99
000301|梁朝伟|0013|0|4155990111111111|20060722201005|5000.00
000001|刘德华|0000|1|4155990188888888|20060725200005|200.00

---------------------------------------------------------------------------

View Code 
 1 package com.study.pratice02;
 2 
 3 import java.io.BufferedReader;
 4 import java.io.File;
 5 import java.io.FileNotFoundException;
 6 import java.io.FileReader;
 7 import java.io.IOException;
 8 import java.util.ArrayList;
 9 import java.util.List;
10 
11 class Test {
12     private String customerInfo;
13 
14     public Test(String customerInfo) {
15         super();
16         this.customerInfo = customerInfo;
17     }
18 
19     public String getCustomerInfo() {
20         return customerInfo;
21     }
22 
23     public void setCustomerInfo(String customerInfo) {
24         this.customerInfo = customerInfo;
25     }
26 
27     @Override
28     public String toString() {
29         return this.getCustomerInfo() + "\n";
30     }
31 
32 }
33 
34 public class TestMessage {
35 
36     public static void main(String[] args) {
37         // TODO Auto-generated method stub
38         System.out.println(composeMessage("c:" + File.separator + "data.txt",
39                 "c:" + File.separator + "template.tmpl"));
40     }
41 
42     public static String composeMessage(String dataFileName,
43             String templateFileName) {
44         File file1 = new File(templateFileName);
45         File file2 = new File(dataFileName);
46         List<Test> list = new ArrayList<Test>();
47         StringBuffer bf = new StringBuffer();
48         BufferedReader br = null;
49         String tempStr = "";
50         try {
51             br = new BufferedReader(new FileReader(file1));
52         } catch (FileNotFoundException e) {
53             e.printStackTrace();
54         }
55         try {
56             while ((tempStr = br.readLine()) != null) {
57                 list.add(new Test(tempStr));
58             }
59         } catch (IOException e) {
60             e.printStackTrace();
61         }
62         try {
63             br = new BufferedReader(new FileReader(file2));
64         } catch (FileNotFoundException e) {
65             e.printStackTrace();
66         }
67         try {
68             while ((tempStr = br.readLine()) != null) {
69                 list.add(new Test(tempStr));
70             }
71         } catch (IOException e) {
72             e.printStackTrace();
73         }
74         try {
75             br.close();
76         } catch (IOException e) {
77             e.printStackTrace();
78         }
79         Object[] o = list.toArray();
80         for (Object ot : o) {
81             bf.append(ot.toString());
82         }
83         return bf.toString();
84     }
85 
86 }



View Code 
  1 package com.study.pratice;
  2 
  3 import java.io.BufferedReader;
  4 import java.io.File;
  5 import java.io.FileNotFoundException;
  6 import java.io.FileReader;
  7 import java.io.IOException;
  8 import java.util.ArrayList;
  9 import java.util.List;
 10 
 11 class Message {
 12     private String cuId;
 13     private String cuName;
 14     private String insNum;
 15     private String cusSex;
 16     private String account;
 17     private String occTime;
 18     private String amount;
 19 
 20     public Message(String[] str, int n) {
 21         if (n == 7) {
 22             this.cuId = str[0];
 23             this.cuName = str[1];
 24             this.insNum = str[2];
 25             this.cusSex = str[3];
 26             this.account = str[4];
 27             this.occTime = str[5];
 28             this.amount = str[6];
 29         }
 30 
 31     }
 32 
 33     public String getCuId() {
 34         return cuId;
 35     }
 36 
 37     public void setCuId(String cuId) {
 38         this.cuId = cuId;
 39     }
 40 
 41     public String getCuName() {
 42         return cuName;
 43     }
 44 
 45     public void setCuName(String cuName) {
 46         this.cuName = cuName;
 47     }
 48 
 49     public String getInsNum() {
 50         return insNum;
 51     }
 52 
 53     public void setInsNum(String insNum) {
 54         this.insNum = insNum;
 55     }
 56 
 57     public String getCusSex() {
 58         return cusSex;
 59     }
 60 
 61     public void setCusSex(String cusSex) {
 62         this.cusSex = cusSex;
 63     }
 64 
 65     public String getAccount() {
 66         return account;
 67     }
 68 
 69     public void setAccount(String account) {
 70         this.account = account;
 71     }
 72 
 73     public String getOccTime() {
 74         return occTime;
 75     }
 76 
 77     public void setOccTime(String occTime) {
 78         this.occTime = occTime;
 79     }
 80 
 81     public String getAmount() {
 82         return amount;
 83     }
 84 
 85     public void setAmount(String amount) {
 86         this.amount = amount;
 87     }
 88 
 89     @Override
 90     public String toString() {
 91         return getCuId() + " " + getCuName() + " " + getInsNum() + " "
 92                 + getCusSex() + " " + getAccount() + " " + getOccTime() + " "
 93                 + getAmount();
 94     }
 95 
 96 }
 97 
 98 public class ComposeFile {
 99 
100     public static String composeMessage(String dataFileName,
101             String templateFileName) {
102         File file1 = new File(dataFileName);
103         File file2 = new File(templateFileName);
104         List<Message> list = new ArrayList<Message>();
105         StringBuffer bf = new StringBuffer();
106         BufferedReader br = null;
107         String s = "";
108         if (file1.exists() && file2.exists()) {
109             try {
110                 br = new BufferedReader(new FileReader(file2));
111             } catch (FileNotFoundException e) {
112                 e.printStackTrace();
113             }
114             try {
115                 while ((s = br.readLine()) != null) {
116                     String[] tempStr = s.split(" ");
117                     list.add(new Message(tempStr, tempStr.length));
118                 }
119             } catch (IOException e) {
120                 e.printStackTrace();
121             }
122             try {
123                 br = new BufferedReader(new FileReader(file1));
124             } catch (FileNotFoundException e) {
125                 e.printStackTrace();
126             }
127             try {
128                 while ((s = br.readLine()) != null) {
129                     String[] tempStr = s.split("\\|");
130                     list.add(new Message(tempStr, tempStr.length));
131 
132                 }
133             } catch (IOException e) {
134                 e.printStackTrace();
135             }
136             try {
137                 br.close();
138             } catch (IOException e) {
139                 e.printStackTrace();
140             }
141             for (Message me : list) {
142                 bf.append(me.toString()).append("\n");
143             }
144         }
145         return bf.toString();
146     }
147 
148     public static void main(String[] args) {
149 
150         System.out.println(composeMessage("c:\\data.txt", "c:\\template.tmpl"));
151 
152     }
153 
154 }



5. 配置文件service.txt的内容如下：
------------------------------------------------------------

#服务名 目的地址 端口号   服务类名   系统名称
HOST localhost 9870   TransferService   后台主机
HIPAY localhost 9870   BJElecToHipayService 应用服务器

------------------------------------------------------------
一行是一个service的配置，每行5列，列间以空格或tab字符分隔。
#为注释符号，即首字符是#的行为注释
类ServiceInfo如下：
public class ServiceInfo{
    private String serviceName;
    private String address;
    private int port;
    private String serviceClassName;
    private String description;

    //get/set method
}
一个ServiceInfo对象存储一行服务配置信息。
类ServiceInfoManager的接口如下:
public Interface ServiceInfoManager{
    public ServiceInfo getServiceInfo(String serviceName);
}
请编写类实现ServiceInfoManager接口，该类能自动读取service.txt配置文件生成ServiceInfo对象，并对外提供最快的按serviceName检索ServiceInfo的功能。
限时：学习40分，编码60分，测试30

View Code 
  1 import java.io.BufferedReader;
  2 import java.io.File;
  3 import java.io.FileNotFoundException;
  4 import java.io.FileReader;
  5 import java.io.IOException;
  6 import java.util.ArrayList;
  7 import java.util.List;
  8 class ServiceInfo {
  9     private String serviceName;
 10     private String address;
 11     private int port;
 12     private String serviceClassName;
 13     private String description;
 14 
 15     public ServiceInfo(String[] str, int n) {
 16         if (n == 5) {
 17             this.serviceName = str[0];
 18             this.address = str[1];
 19             this.port = Integer.parseInt(str[2]);
 20             this.serviceClassName = str[3];
 21             this.description = str[4];
 22         } else {
 23             System.out.println("对象创建失败!");
 24         }
 25     }
 26     public String getServiceName() {
 27         return serviceName;
 28     }
 29     public void setServiceName(String serviceName) {
 30         this.serviceName = serviceName;
 31     }
 32     public String getAddress() {
 33         return address;
 34     }
 35     public void setAddress(String address) {
 36         this.address = address;
 37     }
 38     public int getPort() {
 39         return port;
 40     }
 41     public void setPort(int port) {
 42         this.port = port;
 43     }
 44     public String getServiceClassName() {
 45         return serviceClassName;
 46     }
 47     public void setServiceClassName(String serviceClassName) {
 48         this.serviceClassName = serviceClassName;
 49     }
 50     public String getDescription() {
 51         return description;
 52     }
 53     public void setDescription(String description) {
 54         this.description = description;
 55     }
 56     @Override
 57     public String toString() {
 58         return "服务名称:" + getServiceName() + " 目的地址:" + getAddress() + " 端口号:"
 59                 + getPort() + " 服务类名:" + getServiceClassName() + " 系统名称:"
 60                 + getDescription();
 61     }
 62 
 63 }
 64 interface ServiceInfoManager {
 65     public ServiceInfo getServiceInfo(String serviceName);
 66 
 67 }
 68 public class    Practice05 implements ServiceInfoManager
 69 {
 70     public ServiceInfo getServiceInfo(String serviceName) {
 71         List<ServiceInfo> reList=this.readFile("c:"+File.separator+"service.txt");
 72         for(ServiceInfo si:reList)
 73         {
 74             if(si.getServiceName().equals(serviceName.toUpperCase()))
 75             {
 76                 return si;
 77             }
 78         }        
 79         return null;
 80     }
 81     public List<ServiceInfo> readFile(String fileName)
 82     {
 83         BufferedReader br=null;
 84         int n=0;
 85         String str="";
 86         List<ServiceInfo> list=new ArrayList<ServiceInfo>();
 87         try {
 88             br=new BufferedReader(new FileReader(new File(fileName)));
 89         } catch (FileNotFoundException e) {
 90             e.printStackTrace();
 91         }
 92         try {
 93             while((str=br.readLine())!=null)
 94             {
 95                 n++;
 96                 if(n==1) continue;
 97                 String[] tempStr=str.split("\\s{1,}");
 98                 for(int i=0;i<tempStr.length;i++)
 99                 {
100                     list.add(new ServiceInfo(tempStr,tempStr.length));
101                 }                
102             }
103         } catch (IOException e) {
104             e.printStackTrace();
105         }
106     return list;        
107     }
108      public static void main(String[] args)
109      {
110           Practice05 sim=new Practice05();
111         ServiceInfo b=null;
112         if((b=sim.getServiceInfo("host"))!=null)
113         {
114             System.out.println(b);
115         }
116         else
117         {
118             System.out.println("没有找到!");
119         }
120      }
121 }



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原文地址：https://www.cnblogs.com/xiongyu/p/2248115.html