ICMP性能监控系统毕业设计(论文).doc

大连交通大学信息工程学院毕业设计(论文)任务书题 目 ICMP性能监控任务及要求：1.设计（研究）内容和要求任务：1、 调查ICMP 性能监控的近况，完成实习报告，字数不少于3000，第三周交给指导老师。2、 结合自己实习情况安排进度，填写进度计划表，第二周完成后交给指导老师签字，并严格执行。3、 按照软件工程思想，独立完成系统的设计和程序开发，完成代码估计2000行左右。4、 用JSP技术实现监控业务的基本功能。5、 程序简洁，算法可行，运行情况良好。要求：1、 每周和指导老师至少见面沟通一次，回报课题进展情况，接受老师询问。2、 接到任务书后，查阅与题目及专业相关的外文资料进行翻译，要求不少于10000个外文字符，译出汉字不得少于3000，于第四周交给指导老师审阅。3、 毕业设计第13周完成毕业论文的装订，并由指导老师评阅。论文要求12000字以上，包括综述、系统总体设计、系统实现、性能分析、结论等。4、 教学第13周通过中软及教研室组织进行软件验收，验收时要提供软件使用说明书。5、 于第13周提出毕业答辩申请并签字。6、 第14 周答辩，要求制作PPT2.原始依据通过大学几年的学习，已经学习了诸如软件工程、数据库原理及应用、数据结构、C+、Visual Basic、JAVA等多门程序设计语言和网络等基础知识和专业知识，学生有能力而且可以独立完成小中型项目的设计与开发。学校现有设备和环境可以提供给学生实习和上机，而且具有专业老师可以指导学生。3.参考文献1 韩立刚.奠基计算机网络.北京清华大学出版社.20112 张玲.TCP/IP祥细讲解.北京清华大学出版社.2009.113 林宁.软件测试实用指南.北京电子工业出版社.2010.54 陈爱国.Java面向对象程序设计.北京机械工业出版社.2009.85 张军安.项目管理与案例分析M.电子工业出版社.2010.66 杨亮.oracle数据库学习手册.北京电子工业出版社.2009.37 沈贺.数据库管理信息系统导论.北京清华大学出版社.2009.78 耿祥义.Java实用教程（第三版）M.北京:清华大学出版社.2006.89 陈丹丹.计算机网络基础.北京清华大学出版社.2010.2 10 李忠慰.Java实战宝典.北京人民大学出版社.2008.7 11 Vivek Chopra.Java Network Programming.O'Reilly.2008.0612 Marty Hall.Java How to Program.北京机械工业出版社.2007.11指导教师签字：教研室主任签字：2012年3月26日大连交通大学信息工程学院毕业设计(论文)进度计划与考核表学生姓名佟璐璐专业班级软件工程08-2班指导教师杨 迪王立娟本课题其他人员无题目ICMP性能监控日期计划完成内容完成情况指导老师检查签字第1周拟订毕业论文进度计划与考核表第2周完成实习或调研报告第3周提交外文文献翻译资料第4周系统概要设计阶段第5周系统详细设计阶段第6周系统编码实施、完成论文初稿第7周完成系统编码实施第8周系统编码调试、提交论文初稿第9周完成系统编码调试、完善毕业论文第10周完成撰写毕业设计论文编写及代码测试第11周完成论文终稿、准备毕业论文打印、装订第12周提交毕业论文终稿及代码第13周完成毕业论文第14周毕业论文答辩指导教师签字： 年月日注：“计划完成内容”由学生本人认真填写，其它由指导教师考核时填写。大连交通大学信息工程学院毕业设计(论文)外文翻译学生姓名 佟璐璐 专业班级 软件工程08-2班 指导教师 杨迪王立娟 职 称 高工讲师 所在单位 信息科学系软件工程教研室 教研室主任 刘瑞杰 完成日期 2012 年 4 月 13 日Introduction to JavaJava is designed to meet the challenges of application development in the context of heterogeneous, network-wide distributed environments. Paramount among these challenges is secure delivery of applications that consume the minimum of system resources, can run on any hardware and software platform, and can be extended dynamically.Java originated as part of a research project to develop advanced software for a wide variety of network devices and embedded systems. The goal was to develop a small, reliable, portable, distributed, real-time operating platform. When the project started, C+ was the language of choice. But over time the difficulties encountered with C+ grew to the point where the problems could best be addressed by creating an entirely new language platform.The massive growth of the Internet and the World-Wide Web leads us to a completely new way of looking at development and distribution of software. To live in the world of electronic commerce and distribution, Java must enable the development of secure, high performance, and highly robust applications on multiple platforms in heterogeneous, distributed networks.Operating on multiple platforms in heterogeneous networks invalidates the traditional schemes of binary distribution, release, upgrade, patch, and so on. To survive in this jungle, Java must be architecture neutral, portable, and dynamically adaptable.The Java system that emerged to meet these needs is simple, so it can be easily programmed by most developers; familiar, so that current developers can easily learn Java; object oriented, to take advantage of modern software development methodologies and to fit into distributed client-server applications; multithreaded, for high performance in applications that need to perform multiple concurrent activities, such as multimedia; and interpreted, for maximum portability and dynamic capabilities.Developing your applications using Java results in software that is portable across multiple machine architectures, operating systems, and graphical user interfaces, secure, and high performance, With Java, your job as a software developer is much easieryou focus your full attention on the end goal of shipping innovative products on time, based on the solid foundation of Java. The better way to develop software is here, now, brought to you by the Java language platform.Java has exactly the opposite property: it forces you to make explicit choices. Along with these choices come a lot of assistanceyou can write method invocations and, if you get something wrong, you get told about it at compile time. You dont have to worry about method invocation error.The Java beginner must grasp 30 basic conceptsBasic concept:1.In OOP the only relations is what the objects interface, such as the computer seller he leaves alone internal structure of electrical source, but he is only concerned about that whether the power will be supplied to you, also so long as know can or not but is not how and why.All procedures are make up of certain attribute and the behavior object, the different object visit invokes through the function invocation, between the object all intercommunion are invoke through the method invocation, By object data encapsulation, enhances reuse rate very much.2.In OOP the most important thought is class, the class is the template ,is a blueprint, construct an object from a class, namely construct an instance of the class.3.Encapsulation: is that combines the data and the behavior in a package) and hides the data the realization process to the object user, in an object data is called its instance field.4.Through expands a class to obtain a new class is called inheritance, but all classes are constructed by the object super root class of expansion.5.Object 3 principal characteristicsBehavior- explained this object can make what.Tate- when the object exerts the method object reflection.Dentity- and other similar behavior objects discrimination symbols.Each object has only indentity and among three characteristics they affect mutually.6.Relations among classes:Use-a: Dependent relationHas-a: Polymerization relationIs-a: inheritor relation - example:A class has inherited B class, this time A class not only has B class of method, but also has its own method(Individuality exists in general character)7.Structure object use structure:Structure proposing, the structure is one special method, the structure object and to its initialization.8.Over loading: When many methods have the same name when includes the different parameter, then has the over loading Which method does the compiler have to choose invokes.9.Package: Java allow one or many classes to become together as group, is called package, to organizing duty easily, the standard Java storehouse divides into many packages Java.Lang java.Util java, net and so on, the package is layered and all java packages are in java and in a javax package.10.Extendable thought: permit to construct new class on existing classes , when you extend the class which already existed, then you reuse this class of method and the field, at the same time you might add the new method and the field in the new class.11.Expandable class:The expandable class fully manifested is-a to extend the relations The form is:Class (subclass) extends (base class).12.Multi-modality: In java, the object variable is multi-modality But in java does not support multiple extend.13.Dynamic combine: the mechanism of invoking object method mechanism.1) compiler examines object statement type and method name.2) the compiler examines that method invokes parameter type.3) static combine: If the method type is priavte static the final ,compiler can accurately know which method should invoke.4) when the procedure runs and uses dynamic combine to invoke a method, the method edition which then hypothesized machine must invoke x the object actual type which aims at to match.5) dynamic combine: is a very important characteristic, it can cause the procedure to change again may expand but does not need to translate has saved the code.14.Final class:In order to prevent other people derive the new class from yours class, this class is cannot expanded.15.The dynamic invocation spend longer time than the static invocation expenditure.16.Abstract class:Stipulated or many abstract methods class of itself must define is abstract.17.In Java each class is be extended by object class.18.equal and toString method in object class .Equal uses in testing an object is whether equal with another object.ToString returns to represent this object the string of character, each class can nearly over loading this method, in order to returns to the current condition the correct expression. (The toString method is a very important method)19.General programming:Any class of type all values all may replace with a object class of variable.20.The array tabulates: The ArrayList dynamic array tabulates, is a class of storehouse, defines in java.In uitl package, but automatic control array size.21.in class and class of object ,getclass method returns to the class type an example, when the procedure start contains can increase in the main method class, hypothesized confidential increase all classes which he needs, each increase class all must increase the class which it needs.22.The class: class might dynamic operate the java code for the compilation the procedure to provide the formidable function reflection, this function was JavaBeans is specially useful, the use reflected Java to be able to support the VB programmer to be familiar with the use the tool.23.interface: should showing class could do what but not to assign how to do, a class may realize one or many interfaces.24.The interface is not a class, but is to conforms to a interface request class of set of standard.25.A class only then a super class, but a class can realize many interfaces. In a Java important interface: Cloneable.26.The interface and call-back :to programs a commonly used pattern is call-back,in the pattern, you may refer when this class of pattern settled specific time occurs returns to adjusts on the object the method.27.Object clone:The clone method is a object protection method, this meant your code cannot simple invoke it.28.Inner class an inner class definition is the definition in another class.The reason is:1) an inner class object can visit founds its object realization, including private data.2) about other classes in the same package in that, inner class can be hided.3) the anonymous inner class may the very convenient definition accent.4) uses the category to be possible the extremely convenient compilation event driver.29.Agent class (proxy):1) appointing all codes that interfaces request2) all methods (toString equals) that object class define30.Data type:Java is kind of emphasizing type language, each variable all must be declared its types at first, in java altogether has 8 basic types . four kinds are the long, two kinds are the float, one is the char, being used in the Unicode code char, Boolean.1. java is simpleJava and C + + are very similar, but much simpler. All the high-level programming language features, is not absolutely necessary have been deleted.2. Java is object-orientedJava is an object-oriented programming language. In addition to the simple types, such as digital and Boolean operators in addition, Java is an object of most. As with any object-oriented languages, Java code also organized by category. Each category provides a definition of the object behavior. Another type of succession can be a kind of behavior. In the category of the root level, often the target category. Java support for the single type of inherited hierarchy. This means that each category can only inherit one other category. Some of the language to allow multiple inheritance, but it may cause confusion and unnecessarily complicated language. For example, imagine that an object would inherit two completely different category. Java also supports the kind of summary of the interface. This allows programmers to define the interface methods, and do not have to rush immediately to determine the methods to achieve. A type of interface can be a number of purposes in order to truly multi-inheritance of a number of advantages. The implementation of an object can be any number of interfaces. IDL interface and Java interface very similar. Very easy to set up IDLJ compiler. In other words, Java can be used to create a CORBA object system distributed object system. In the view of many computer systems use IDL interface and CORBA objects, such compatibility is important.3. Java is a type of staticIn a Java program, it is essential to the definition used by the target (number of characters, such as an array) type. This will help programmers quickly found because the procedure when the compiler can detect the type of error. However, Java System objects are also dynamic types. A requirement for the type of dynamic is often possible, so programmers can write the procedures for different types of objects to do different things. 4. Is a Java-based compiler When running Java programs, which were first compiled into byte code. Byte code is very similar to the machine instructions, so Java program is very efficient. However, the byte code does not specifically for a particular machine, so no need to recompile Java program can be in many different computer implementation. Java source code files were compiled into a category, which is equivalent to process byte code performance. In a Java class file, and an example for all of the variables are in the light of, and for the first time in the implementation of the code be resolved. This makes the code more common and more easily subject to revision, but still high. 5. Java is architecture neutral Java language is the same for each computer. For example, simple types are the same: 32-bit integer always, always 64-bit long integers. It is strange, such as C and C + + programming language, and so fashionable it is not the case. As a result of these languages so the definition of freedom, each of the compiler and development environment will be different, so that this process nuisance become a transplant. Java programs can easily gain access to transplants, and there is no need to re-compile. 6. Java is a sound Java program can not be caused by the collapse of the computer. Java careful testing of the system memory of each visit, make sure it is legitimate and will not cause any problems. However, even if the Java program may also be wrong. If there is some kind of unexpected things, the process will not collapse, and to a