{"id":20713642,"url":"https://github.com/xuperchain/xuper-java-sdk","last_synced_at":"2026-03-04T19:32:22.835Z","repository":{"id":37109981,"uuid":"224450716","full_name":"xuperchain/xuper-java-sdk","owner":"xuperchain","description":"The java sdk of xuperunion 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unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-17T02:26:25.542Z","updated_at":"2026-03-04T19:32:22.799Z","avatar_url":"https://github.com/xuperchain.png","language":"Java","funding_links":[],"categories":["Development Tutorial"],"sub_categories":["Consortium Blockchain"],"readme":"# xuper-java-sdk\nThe java sdk of xuperunion https://github.com/xuperchain/xuperunion\n\n# Usage\n\n## Add Dependency\n\nIf your're using Maven, just add the following dependency in `pom.xml`.\n\n```xml\n\u003cdependency\u003e\n  \u003cgroupId\u003ecom.baidu.xuper\u003c/groupId\u003e\n  \u003cartifactId\u003exuper-java-sdk\u003c/artifactId\u003e\n  \u003cversion\u003e0.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\n## Config file\n\nIf you use the endorsement feature, set the configuration file like this:\n\n```\nConfig.setConfigPath(\"./conf/sdk.yaml\");\n```\n\nThe config file is here: src/main/java/com/baidu/xuper/conf/sdk.yaml.\n\nTest net config file is here: src/main/java/com/baidu/xuper/conf/sdk.testnet.yaml.\n\n## Create client\n\n```java\nXuperClient client = new XuperClient(\"127.0.0.1:37101\");\n```\n\n## Import account keys\n\n```java\n// Import account from local keys\nAccount account = Account.create(\"./keys\");\n```\n\n## Create account and mnemonic\n\n```java\n// Import account from local keys\nAccount account = Account.create(1, 2);\nSystem.out.println(account.getAddress());\nSystem.out.println(account.getMnemonic());\n```\n\n## Create contract account\n\n```java\n// The account name is XC1111111111111111@xuper\nclient.createContractAccount(account, \"1111111111111111\");\n```\n\n## Transfer xuper to contract account\n\n```java\nclient.transfer(account, \"XC1111111111111111@xuper\", BigInteger.valueOf(1000000), \"1\");\n```\n\n## Query balance of account\n```java\n BigInteger result = client.getBalance(\"XC1111111111111111@xuper\");\n```\n\n## Query balance details of account\n\n```java\n XuperClient.BalDetails[] result = client.getBalanceDetails(\"XC1111111111111111@xuper\");\n```\n\n## Deploy contract using contract account\n\n```java\n// Using a contract account to deploy contract\naccount.setContractAccount(\"XC1111111111111111@xuper\");\nMap\u003cString, byte[]\u003e args = new HashMap\u003c\u003e();\nargs.put(\"creator\", \"icexin\".getBytes());\nString codePath = \"./counter.wasm\";\nbyte[] code = Files.readAllBytes(Paths.get(codePath));\n// the runtime is c\nclient.deployWasmContract(account, code, \"counter\", \"c\", args);\n```\n\n## Invoke contract\n\n```java\nMap\u003cString, byte[]\u003e args = new HashMap\u003c\u003e();\nargs.put(\"key\", \"icexin\".getBytes());\nTransaction tx = client.invokeContract(account, \"wasm\", \"counter\", \"increase\", args);\nSystem.out.println(\"txid: \" + tx.getTxid());\nSystem.out.println(\"response: \" + tx.getContractResponse().getBodyStr());\nSystem.out.println(\"gas: \" + tx.getGasUsed());\n```\n\n## EVM contract\n\n```java\nString abi = \"[{\\\"inputs\\\":[{\\\"internalType\\\":\\\"uint256\\\"......\";\nString bin = \"6080604......\";\n\nMap\u003cString, String\u003e args = new HashMap\u003c\u003e();\nargs.put(\"num\", \"5889\");\n\nTransaction t = client.deployEVMContract(account, bin.getBytes(), abi.getBytes(), contractName, args);\nSystem.out.println(\"txID:\" + t.getTxid());\n\n// storagepay is a payable method. Amount param can be NULL if there is no need to transfer to the contract.\nTransaction t1 = xuperClient.invokeEVMContract(account, contractName, \"storepay\", args, BigInteger.ONE);\nSystem.out.println(\"txID:\" + t1.getTxid());\nSystem.out.println(\"tx gas:\" + t1.getGasUsed());\n\nTransaction t2 = xuperClient.queryEVMContract(account, contractName, \"retrieve\", null);\nSystem.out.println(\"tx res getMessage:\" + t2.getContractResponse().getMessage());\nSystem.out.println(\"tx res getBodyStr:\" + t2.getContractResponse().getBodyStr());\n```\n\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fxuperchain%2Fxuper-java-sdk","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fxuperchain%2Fxuper-java-sdk","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fxuperchain%2Fxuper-java-sdk/lists"}