CN105554133B - HTTP remote data access system and method - Google Patents

HTTP remote data access system and method Download PDF

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Publication number
CN105554133B
CN105554133B CN201510975979.9A CN201510975979A CN105554133B CN 105554133 B CN105554133 B CN 105554133B CN 201510975979 A CN201510975979 A CN 201510975979A CN 105554133 B CN105554133 B CN 105554133B
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data
server
http request
access
middle tier
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CN105554133A (en
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杜红刚
张颖
王家宾
李金凤
马幸晖
刘涛
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Tianyi Digital Life Technology Co Ltd
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CENTURY DRAGON INFORMATION NETWORK Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/08Network architectures or network communication protocols for network security for authentication of entities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/12Applying verification of the received information

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The present invention relates to a kind of HTTP remote data access system and methods, send HTTP request to middle tier server by client terminal.Corresponding query result is obtained from database server according to access data by middle tier server, and is sent to client terminal after query result is converted to JSON format.It is remotely accessed by data medium of JSON, data exchange can be carried out between different platform, not only professional platform independence can be implemented, and occupied bandwidth is also relatively small in transmission process.JSON file format is determined can easily be parsed in transmission data procedures, so that code becomes succinct and easy to maintain, and avoided client and repeated to write the code of identical function.Compared with traditional HTTP method of remote data access, efficiency data query is improved.

Description

HTTP remote data access system and method
Technical field
The present invention relates to crossing internet data access technology fields, more particularly to a kind of HTTP remote data access system And method.
Background technique
With the arrival of big data era, distributed computing, distributed server cluster, distributed storage etc. all at For a kind of trend.The sharply expansion of server will necessarily have application server and database server not in same local area network Situation, safety is particularly important for database, in order to prevent the malicious attack of outer net, and database can forbid outer net to visit It asks.
Traditional HTTP method of remote data access is the heterogeneous databases integration based on XML and Web Service technology Method uses XML as the carrier of data.The access of Web database using browser/Web server (B/S) or browser/ Web server/database server (B/S/S) structure.Client sends request to server by browser and server carries out Connection, to realize in the environment of Internet/Intranet to the access operation of database.
Data are transmitted with XML data format, the redundancy of data is larger, and file format is complicated, and transmission accounts for bandwidth;Transmit number It requires that a large amount of codes is spent to parse XML according to server end in the process and client, leads to server end and client code Become complex and not convenient for safeguarding;The mode that XML is parsed between client different browsers is inconsistent, needs to repeat to write very More codes;The server end caused by upper and client parsing XML spend more resource and time.Therefore traditional HTTP is long-range Data access method haves the shortcomings that efficiency data query is low.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of HTTP remote data access system that efficiency data query is high System and method.
A kind of HTTP remote data access system, including client terminal, middle tier server and database server, it is described Client terminal and the middle tier server communicate to connect, and the middle tier server connects the database server,
For the client terminal for sending HTTP request to the middle tier server, the HTTP request includes JSON lattice The access data of formula;
The middle tier server is used to obtain corresponding look into from the database server according to the access data It askes as a result, and being sent to the client terminal after the query result is converted to JSON format.
A kind of HTTP method of remote data access, comprising the following steps:
HTTP request is sent to middle tier server by client terminal, and the HTTP request includes the access of JSON format Data;
Corresponding inquiry is obtained from database server according to the access data by the middle tier server to tie Fruit;
The client terminal is sent to after the query result is converted to JSON format by the middle tier server.
Above-mentioned HTTP remote data access system and method send HTTP request to middle layer service by client terminal Device, HTTP request include the access data of JSON format.By middle tier server according to access data from database server It is middle to obtain corresponding query result, and client terminal is sent to after query result is converted to JSON format.Using JSON as data Carrier is remotely accessed, and data exchange can be carried out between different platform, not only professional platform independence can be implemented, and be transmitted across Occupied bandwidth is also relatively small in journey.JSON file format is determined can easily be parsed in transmission data procedures, be made Obtaining code becomes succinct and easy to maintain, and avoids client and repeat to write the code of identical function.It is remote with traditional HTTP Journey data access method is compared, and efficiency data query is improved.
Detailed description of the invention
Fig. 1 is the structure chart of HTTP remote data access system in an embodiment;
Fig. 2 is the flow chart of HTTP method of remote data access in an embodiment;
Fig. 3 is the flow chart of HTTP method of remote data access in another embodiment.
Specific embodiment
A kind of HTTP remote data access system, as shown in Figure 1, including client terminal 110,120 and of middle tier server Database server 130, client terminal 110 and middle tier server 120 communicate to connect, and middle tier server 120 connects data Library server 130.
For client terminal 110 for sending HTTP request to middle tier server 120, HTTP request includes JSON The access data of (JavaScript Object Notation) format;Middle tier server 120 be used for according to access data from Corresponding query result is obtained in database server 130, and is sent to client's end after query result is converted to JSON format End 110.
Access data specifically may include inquiry data, for inquiring the storing data in database server 130. In addition, access data may also include editor's data, for carrying out data edition to database server 130, such as data increase, delete It removes and modifies.Client terminal 110 specifically can be the terminal devices such as desktop computer, laptop or touch-screen mobile phone, user Dependent instruction can be inputted by the webpage of client terminal 110, client terminal 110 instructs based on the received generates the access of JSON format Data, and middle tier server 120 is sent in the form of HTTP request to carry out data query operation.
It is the data interchange format of lightweight in view of JSON, is that carrier transmission data simplify data more with JSON, Data exchange can be carried out between different platform, not only professional platform independence can be implemented, and occupied bandwidth also phase in transmission process To smaller.The file format of JSON determines that in transmission data procedures, either server end or client can be light Pine parsing it so that server end and client code become it is succinct and safeguard;Further, since client different viewing The mode that JSON is parsed between device is consistent, also can avoid the code for repeating to write identical function.
HTTP request further includes data signature in one of the embodiments,.Client terminal 110 is sending HTTP request extremely Before middle tier server 120, it is also used to obtain HTTP request method, HTTP request resource path and timestamp and generates data label Name, and HTTP request is generated according to the access data of data signature and JSON format.Timestamp refers to that client terminal 110 is sent The time of HTTP request can specifically obtain HTTP request method, HTTP request resource path and the free algorithm of timestamp and generate Data signature, and HTTP request head is written into data signature, it is generated in conjunction with the access data of pre-generated JSON format HTTP request.
Middle tier server 120 is obtained from database server 130 according to access data in one of the embodiments, It before corresponding query result, is also used to verify HTTP request, judges whether HTTP request is legal;If so, according to Access data obtain corresponding query result from database server 130.
Judge that whether legal HTTP request standard be not unique, can adjust according to the actual situation.In the present embodiment with HTTP request includes that data signature is corresponding with access data, and it includes identity that middle tier server 120, which carries out verifying to HTTP request, At least one of verifying, validation verification, authentication verifying and performance prediction verifying.Authentication refers to that verifying HTTP is asked The digital signature asked is verified, specifically can according in HTTP request head HTTP request method, HTTP request resource path and The timestamp secondary generation data signature of free algorithm, is then compared, if identical explanation is asked with received data signature It asks legal, otherwise illustrates to request illegal.Whether whether the specific digital examination HTTP request of validation verification repeatedly and overtime, is Prevent operation layer by malicious attack, effective HTTP request can only access once in the present embodiment, and effective HTTP Requesting validity period is 10 minutes.Can be specifically compared with the HTTP request of storage having responded to judge whether it is requested, And compare the timestamp in request with current time, determine whether in validity period.If requesting for the first time and in validity period It is then effectively to request, is otherwise invalidation request.Authentication verifying refers to the operating right of detection HTTP request, specifically can be preparatory The corresponding permission of each HTTP request method is set, if only read-only authority, and HTTP request include to database increase, delete, The operation of modification then determines that this HTTP request is illegal.Whether the performance prediction verifying i.e. operation item number of finger judgement HTTP request Preset threshold is operated, specifically largely can be inserted into, modify and delete according to whether the access data judging HTTP request of carrying contains Except operation determines that HTTP request is illegal if operation item number is greater than preset threshold.In addition, middle tier server 120 may be used also For storing received HTTP request, compared in order to carry out the verifying of next HTTP request.
In the present embodiment, middle tier server 120 carries out authentication, validation verification, safety to HTTP request simultaneously Identify verifying and performance prediction verifying, by data access carry out multiple-protection, can with the safety of effective guarantee database, Also the malicious attack to middle tier server 120 has been prevented.
Middle tier server 120 connects stratum server with data including business stratum server in one of the embodiments, Business stratum server connects client terminal 110 and datalink layer connection server, datalink layer connection server connection data storehouse service Device 130.
The fragment ID that business stratum server is stored according to access data acquisition corresponding data, and according to access data and fragment ID generates substance parameter and is sent to data connection stratum server;And the query result that data connection stratum server is sent is received, and Client terminal 110 is sent to after being converted to JSON format.
Specifically the access data of JSON format can be converted to entity object, calculate the corresponding data storage of HTTP request Fragment ID and be arranged into entity object, finally pass to data connection stratum server for entity object as substance parameter. In the present embodiment business stratum server according to access data acquisition corresponding data storage fragment ID before, to HTTP request into Row verifying, specific as described above, details are not described herein.
Data connection stratum server is used to convert substance parameter to sql (Structured Query Language, knot Structure query language) sentence, query result is obtained from the association of database server 130 according to sql sentence and is sent to operation layer Server.Sql sentence is converted by substance parameter and carries out inquiry operation, improves data query convenience.For being related to more libraries The complex operations sentence of multilist can first decompose complicated sentence, and every sentence is the sql language for corresponding preset data table Sentence, and then inquire database.
Data connection stratum server is associated in database server obtain query result after be sent to business stratum server, Business stratum server is sent to client terminal 110 after query result is converted to JSON format.
Above-mentioned HTTP remote data access system, the transmission HTTP request of client terminal 110 to middle tier server 120, HTTP request includes the access data of JSON format.Middle tier server 120 is according to access data from database server 130 Corresponding query result is obtained, and is sent to client terminal 110 after query result is converted to JSON format.Using JSON as data Carrier is remotely accessed, and data exchange can be carried out between different platform, not only professional platform independence can be implemented, and be transmitted across Occupied bandwidth is also relatively small in journey.JSON file format is determined can easily be parsed in transmission data procedures, be made Obtaining code becomes succinct and easy to maintain, and avoids client and repeat to write the code of identical function.It is remote with traditional HTTP Journey data access method is compared, and efficiency data query is improved.
The present invention also provides a kind of HTTP method of remote data access, real based on above-mentioned HTTP remote data access system It is existing, as shown in Figure 2, comprising the following steps:
Step S120: HTTP request is sent to middle tier server by client terminal.HTTP request includes JSON format Access data.Access data specifically may include inquiry data, for inquiring the storing data in database server. In addition, access data may also include editor's data, for carrying out data edition to database server, as data increase, deletion With modification etc..
Client terminal specifically can be the terminal devices such as desktop computer, laptop or touch-screen mobile phone, and user can pass through The webpage of client terminal inputs dependent instruction, and client terminal instructs based on the received generates JSON format access data, and with The form of HTTP request is sent to middle tier server to carry out data query operation.
Step S140: corresponding inquiry is obtained according to access data from database server by middle tier server and is tied Fruit.Middle tier server includes that business stratum server with data connects stratum server in one of the embodiments,.Step S140 It may include specifically step 142 and step 144.
Step 142: by business stratum server according to the fragment ID of access data acquisition corresponding data storage, and according to visit Ask that data and fragment ID generate substance parameter and are sent to data connection stratum server.The access data of JSON format can specifically be turned It is changed to entity object, calculate the fragment ID of the corresponding data storage of HTTP request and is arranged into entity object, it finally will be real Body object passes to data connection stratum server as substance parameter.
Step 144: sql sentence being converted for substance parameter by data connection stratum server, according to sql sentence from data Library server is associated with to obtain query result.Sql sentence is converted by substance parameter and carries out inquiry operation, and it is convenient to improve data query Property.For being related to the complex operations sentence of more library multilists, first complicated sentence can be decomposed, every sentence is for correspondence The sql sentence of preset data table, and then inquire database.
Step S150: client terminal is sent to after query result is converted to JSON format by middle tier server.It is right Ying Di, step S150 includes step 152 and step 154 in one of the embodiments,.
Step 152: query result is sent to by business stratum server by data connection stratum server.Datalink layer connection clothes After business device is associated in database server and obtains query result, query result is returned into business stratum server.
Step 154: being sent to client terminal after query result is converted to JSON format by business stratum server.Business After stratum server receives the query result of data connection stratum server return, sent after query result is converted to JSON format To client terminal.
It is the data interchange format of lightweight in view of JSON, is that carrier transmission data simplify data more with JSON, Data exchange can be carried out between different platform, not only professional platform independence can be implemented, and occupied bandwidth also phase in transmission process To smaller.The file format of JSON determines that in transmission data procedures, either server end or client can be light Pine parsing it so that server end and client code become it is succinct and safeguard;Further, since client different viewing The mode that JSON is parsed between device is consistent, also can avoid the code for repeating to write identical function.
In one of the embodiments, as shown in figure 3, HTTP request further includes data signature.Before step S120, HTTP Method of remote data access further includes step S110.
Step S110: HTTP request method, HTTP request resource path and timestamp are obtained by client terminal and generate number HTTP request is generated according to signature, and according to the access data of data signature and JSON format.Timestamp refers to that client terminal 110 is sent out The time of HTTP request is sent, it is raw can specifically to obtain HTTP request method, HTTP request resource path and the free algorithm of timestamp HTTP request head is written at data signature, and by data signature, is generated in conjunction with the access data of pre-generated JSON format HTTP request.
In one of the embodiments, with continued reference to Fig. 3, after step S120, before step S140, HTTP teledata Access method may also include step S130.
Step S130: verifying HTTP request by middle tier server, judges whether HTTP request is legal;If It is then to carry out step S140;If it is not, can then stop, step S110 also can return to, generate HTTP request again by client terminal And it is sent to middle tier server.Specifically number can corresponded to according to access data acquisition by business stratum server in the present embodiment Before the fragment ID of storage, HTTP request is verified.
Judge that whether legal HTTP request standard be not unique, can adjust according to the actual situation.In the present embodiment with HTTP request includes that data signature is corresponding with access data, and it includes identity that middle tier server 120, which carries out verifying to HTTP request, At least one of verifying, validation verification, authentication verifying and performance prediction verifying.Authentication refers to that verifying HTTP is asked The digital signature asked is verified, specifically can according in HTTP request head HTTP request method, HTTP request resource path and The timestamp secondary generation data signature of free algorithm, is then compared, if identical explanation is asked with received data signature It asks legal, otherwise illustrates to request illegal.Whether whether the specific digital examination HTTP request of validation verification repeatedly and overtime, is Prevent operation layer by malicious attack, effective HTTP request can only access once in the present embodiment, and effective HTTP Requesting validity period is 10 minutes.Can be specifically compared with the HTTP request of storage having responded to judge whether it is requested, And compare the timestamp in request with current time, determine whether in validity period.If requesting for the first time and in validity period It is then effectively to request, is otherwise invalidation request.Authentication verifying refers to the operating right of detection HTTP request, specifically can be preparatory The corresponding permission of each HTTP request method is set, if only read-only authority, and HTTP request include to database increase, delete, The operation of modification then determines that this HTTP request is illegal.Whether the performance prediction verifying i.e. operation item number of finger judgement HTTP request Preset threshold is operated, specifically largely can be inserted into, modify and delete according to whether the access data judging HTTP request of carrying contains Except operation determines that HTTP request is illegal if operation item number is greater than preset threshold.
Above-mentioned HTTP method of remote data access sends HTTP request to middle tier server, HTTP by client terminal Request includes the access data of JSON format.It is obtained from database server pair by middle tier server according to access data The query result answered, and client terminal is sent to after query result is converted to JSON format.It is carried out by data medium of JSON Remote access, can carry out data exchange, not only professional platform independence can be implemented, and occupy in transmission process between different platform Bandwidth is also relatively small.JSON file format is determined can easily be parsed in transmission data procedures, so that code becomes Must be succinctly and easy to maintain, and avoid client and repeat to write the code of identical function.It is visited with traditional HTTP teledata The method of asking is compared, and efficiency data query is improved.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (8)

1. a kind of HTTP remote data access system, which is characterized in that taken including client terminal, middle tier server and database Business device, the client terminal and the middle tier server communicate to connect, and the middle tier server connects the database clothes Business device,
For the client terminal for sending HTTP request to the middle tier server, the HTTP request includes JSON format Access data;The access data include inquiry data and editor's data, and the inquiry data are used for the database service Storing data in device is inquired;The middle tier server carries out the database server according to editor's data Data edition;
The middle tier server is used to obtain corresponding inquiry from the database server according to the access data and tie Fruit, and the client terminal is sent to after the query result is converted to JSON format;
The middle tier server includes that business stratum server connects stratum server with data, and the business stratum server connects institute Client terminal and the data connection stratum server are stated, the data connection stratum server connects the database server, institute Business stratum server is stated according to the fragment ID of the access data acquisition corresponding data storage, and according to the access data and institute It states fragment ID generation substance parameter and is sent to the data connection stratum server;And it receives the data connection stratum server and sends Query result, and be sent to the client terminal after being converted to JSON format;The data connection stratum server is used for institute It states substance parameter and is converted into sql sentence, be associated with to obtain the query result from the database server according to the sql sentence And it is sent to the business stratum server.
2. HTTP remote data access system according to claim 1, which is characterized in that the HTTP request further includes number According to signature;The client terminal is also used to obtain HTTP request side before sending HTTP request to the middle tier server Method, HTTP request resource path and timestamp generate the data signature, and according to the data signature and the JSON format Access data generate the HTTP request.
3. HTTP remote data access system according to claim 2, which is characterized in that the middle tier server according to The access data before obtaining corresponding query result in the database server, be also used to the HTTP request into Row verifying, judges whether the HTTP request is legal;If so, being obtained from the database server according to the access data Take corresponding query result.
4. HTTP remote data access system according to claim 3, which is characterized in that the middle tier server is to institute State HTTP request carry out verifying include authentication, validation verification, authentication verifying and performance prediction verifying at least It is a kind of.
5. a kind of HTTP method of remote data access, which comprises the following steps:
HTTP request is sent to middle tier server by client terminal, and the HTTP request includes the access number of JSON format According to;The access data include inquiry data and editor's data, and the inquiry data are used for the storage in database server Data are inquired;The middle tier server carries out data edition to the database server according to editor's data;
Corresponding query result is obtained from database server according to the access data by the middle tier server;
The client terminal is sent to after the query result is converted to JSON format by the middle tier server;
The middle tier server includes that business stratum server with data connects stratum server;It is described to be serviced by the middle layer The step of device obtains corresponding query result according to the access data from database server, comprising the following steps:
By the business stratum server according to the fragment ID of the access data acquisition corresponding data storage, and according to the visit Ask that data and the fragment ID generate substance parameter and are sent to the data connection stratum server;
Sql sentence is converted by the substance parameter by the data connection stratum server, according to the sql sentence from described Database server is associated with to obtain query result.
6. HTTP method of remote data access according to claim 5, which is characterized in that the HTTP request further includes number According to signature;It is further comprising the steps of before described the step of sending HTTP request to middle tier server by client terminal:
HTTP request method, HTTP request resource path and timestamp, which are obtained, by client terminal generates the data signature, and The HTTP request is generated according to the access data of the data signature and the JSON format.
7. HTTP method of remote data access according to claim 5, which is characterized in that send HTTP by client terminal After request to middle tier server, obtained from database server by the middle tier server according to the access data It is further comprising the steps of before taking corresponding query result:
The HTTP request is verified by the middle tier server, judges whether the HTTP request is legal;
If so, described obtained from database server pair by the middle tier server according to the access data The step of query result answered.
8. HTTP method of remote data access according to claim 5, which is characterized in that described to be taken by the middle layer The query result is converted to the step of being sent to the client terminal after JSON format by business device, comprising the following steps:
The query result is sent to the business stratum server by the data connection stratum server;
The client terminal is sent to after the query result is converted to JSON format by the business stratum server.
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